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  Most Popular Tutorials

• Microsoft Vista Home Networking Setup and Options
The most daunting part of upgrading to Windows Vista may be trying to figure out where in the layers of menus the networking and file-sharing options are hidden.

• Do It Yourself: Roll Your Own Network Cables
It may not be something you do everyday, but having the supplies and know-how to whip up a network cable on the spot can be very handy.

• Tips for Securing Your Home Router
Seemingly minor and easily overlooked settings can still have profound security implications. Here are some steps you can take to make sure your wired or wireless home router and by extension, your network is as secure as possible.

  Most Popular Reviews

• Microsoft Windows Home Server
If you have a home network, you'll welcome the easy file sharing, remote access and the image-based backup features of Windows Home Server.

• Iomega StorCenter Network Hard Drive
Iomega's fourth generation StorCenter Network Hard Drive brings many of the features found in higher-end storage devices down to an attractive price.

• MikroTik's The Dude
This free tool delivers many of the same capabilities that you'd find in pricey network monitoring tools. As long as you don't mind tinkering, The Dude is a decent network utility that should be worth the download.



Data Formats and Their File Extensions

.#24    Printer data file for 24 pin matrix printer (LocoScript)
.#ib    Printer data file (LocoScript)
.#sc    Printer data file (LocoScript)
.#st    Standard mode printer definitions (LocoScript)
.$#!	Cryptext
.$$$    Temporary file
.$00    Pipe file (DOS)
.$db    Temporary file (dBASE IV)
.$ed    Editor temporary file (MS C)
.$o1    Pipe file (DOS)
.$vm    Virtual manager temporary file (Windows 3.x)
._dd	Norton Disk Doctor Recovered file
.~$~    Temporary file (1st Reader)
.~ap    Old AppExpert project database (Borland C++ 4.5)
.~de    Project backup (Borland C++ 4.5)
.~mn    Menu backup (Norton Commander)
.\201$\201      Temporary file (1st Reader)
.000    Compressed harddisk data (DoubleSpace)
.001    Fax (many)
.075    75x75 dpi display font (Ventura Publisher)
.085    85x85 dpi display font (Ventura Publisher)
.091    91x91 dpi display font (Ventura Publisher)
.096    96x96 dpi display font (Ventura Publisher)
.0b     Printer font with lineDraw extended 
		character set (PageMaker)
.1      Roff/nroff/troff/groff source for manual page (cawf2.zip)
.113	Iomega Backup file
.123	Lotus file
.15u    Printer font with PI font set (PageMaker)
.1st    Usually README.1ST text
.2d	2d Drawings (VersaCad)
.2dl	2d Libraries (VersaCad)
.3d	3d Drawings (VersaCad)
.3dl	3d Libraries (VersaCad)
.301    Fax (Super FAX 2000 - Fax-Mail 96))
.386    Intel 80386 processor driver (Windows 3.x)
.3ds    Graphics (3D Studio)
.3fx    Effect (CorelChart)
.3gr    Data file (Windows Video Grabber)
.3t4    Binary file converter to ASCII (Util3)
.411	Sony Mavica Data file
.4c$    Datafile (4Cast/2)
.4sw    4dos Swap File
.4th    Forth source code file (ForthCMP - LMI Forth)
.669    Music (8 channels) (The 669 Composer)
.6cm    Music (6 Channel Module) (Triton FastTracker)
.8      A86 assembler source code file
.8cm    Music (8 Channel Module) (Triton FastTracker)
.8m     Printer font with Math 8 extended 
	character set (PageMaker)
.8u     Printer font with Roman 8 extended 
	character set (PageMaker)
.a      Ada source code file
	Library (unix)
.a11    Graphics AIIM image file
.a3d	Amapi 3D Modeling file
.a3m	Unpackaged Authorware MacIntosh file
.a3w	Unpackaged Authorware Windows file
.a4m	Unpackaged Authorware MacIntosh file
.a4p	Authorware file packaged without runtime
.a4w	Unpackaged Authorware Windows file
.a5w	Unpackaged Authorware Windows file
.aab	Macromedia Authorware Binary
.aam	Authorware shocked file
.ab2	Parson's Address Book
.ab6    Datafile (ABStat)
.ab8    Datafile (ABStat)
.aba	Palm Address Book file
.abc	ABC FLOWCHARTER 1.x flowchart
	ABC2K Audio/Video Controller Software
.abd	AmBiz Bonus Calculator data file
        Adventure Builder database
.abf	Adobe Binary Font
.abk    Automatic backup file (CorelDRAW)
.abm	ImagePals Photo Album Document
	Montage Photo Album file
	PhotoPlus Album file
.abs    Abstracts (info file)
	Data file (Abscissa)
	MPEG audio sound file
.abw	AbiWord document
.abx	WordPerfect Address Book file
.ac3	AC3 Audio File Format 
.aca	Microsoft Agent Character file
	Project (Project Manager Workbench)
.acb    Graphics (ACMB)
.acc    Program (DR-DOS - ViewMax) (GEM / resident)
.acd	Sonic Foundry Acid music file
.ace	Ace Archiver compressed file
.acf	Microsoft Agent Character file
.aci	ACI Development Appraisal
.acl	Document file (Audit Command Language)
.acm	Audio Compression Manager Driver
        Photoshop command button
        Windows system file
        ACBM image file  
        Interplay compressed Sound file  
.acs	MS Agent Character file
.act    Actor source code file
	Foxdoc Action Diagrams (FoxPro)
	Presentation (Action!)
.acv	OS/2 Audio Drivers
	Photoshop Saved Curve
.ad     Screen saver data (AfterDark)
.ada    Ada source code file
.adb    Ada Package Body
.adc    Bitmap graphics (16 colors) (Scanstudio)
.adf	Adapter Description file
        Admin Config file
        Amiga Disk File 
        Dog Creek QC Mask file
.adi    Graphics (AutoCAD)
.adl    Mca adapter description library (QEMM)
.adm	After Dark Screen Saver Module   
        Windows Policy Template
        Addict Compiled Dictionary
        Advantage Data Server Database Memo file
.adn    Add-in (Lotus 1-2-3)
.ado	Photoshop Duotone Options
	Stata Program
.adp	FaxWorks Modem setup file
        Astound Dynamite file
        MS Access Project
        AOLserver Dynamic Page file  
.adr	Address Book
	Address Plus Database
	After Dark Random Screen Saver Module
	Opera Web Browser Bookmark file
	Smart Address Address Book
.ads    Ada Package Specification
.adt    Datafile for cardfile application (HP NewWave)
	Fax (AdTech)
.adx    Document (Archetype Designer)
.adz	GZ-Packed Amiga Disk file
.aeh	iPer Advanced Embedded Hypertext
.aex	PGP Armored Extracted Public Encryption Key
.af2    Flowchart (ABC FlowCharter 2.0)
.aff	AnyForm Form file
.afi    Truevision bitmap graphics
.afl    Font file (for Allways) (Lotus 1-2-3)
.afm    Type 1 font metric ASCII data for font installer (ATM - many)
	Datafile for cardfile application (HP NewWave)
.aft	AnyForm template file
.agp	Aspen Graphics Pages
.agw	Aspen Graphics Windows
.ai     Vector graphics (Adobe Illustrator)
.ain    Compressed file archive created by AIN
.aio    APL file transfer format file
.ais    Array of Intensity Samples graphics (Xerox)
.aix    Datafile for cardfile application (HP NewWave)
.alb	JASC Image Commander Album
	Photo Soap2 file
	Steinberg Cubase or VST Backup Song file
.albm	webAlbum Photo Album
        HP Photosmart Photo Printing Album
.all    Format file for working pages (Always)
	General printer information (WordPerfect for Win)
	Symbol and font files (Arts & Letters)
.alt    Menu file (WordPerfect Library)
.als	Alias Image
        Calmira Shortcut file
.alz	ALZip Compressed file
.amf    Music (Advanced Module Format)
.amg    Compressed file archive created by AMGC
	System image file (Actor)
.amp	Photoshop Arbitrary Map Settings
.anc	Animation file format (MorphInk)
.ani    Animation (Presidio - many)
.anm    Animation (Deluxe Paint Animator)
.ann    Help Annotations (Windows 3.x)
.ans    Ansi graphics (character animation)
	Ascii text ANSI character set (NewWave Write)
.aos    Add-On Software (Nokia 9000)
.ap     Compressed Amiga file archive created by WHAP
	Datafile (Datalex EntryPoint 90)
.apc    Printer driver (Lotus 1-2-3)
.apd    Printer driver (Lotus 1-2-3)
.ape	Music format (different players)
.apf    Printer driver (Lotus 1-2-3)
.api    Passed parameter file (1st Reader)
	Printer driver (Lotus 1-2-3)
.apl    APL work space format file
.apm	ArcPad 6 file
.app    Add-in application file (Symphony)
	Application object file (dBASE Application Generator)
	Executable application file (DR-DOS - NeXTstep - Atari)
	Generated application (FoxPro)
.apr    Employee performance review (Employee Appraiser)
.aps	MS Visual C++ file
	ArcPad 5 Symbology file
.apx    Appexpert database file (Borland C++ 4.5)
.arc    Compressed file archive created by ARC (arc602.exe/pk361.exe)
	Compressed file archive created by SQUASH (squash.arc)
.arf    Automatic Response file
.arg	AutoCAD Profile Export fileile
.ari    Compressed file archive created by ARI
.arj    Compressed file archive created by ARJ (arj241.exe)
.ark    Arc file archive created by CP/M port of ARC file archiver
	Compressed file archive created by QUARK
.arl	AOL Organizer File
.arr    Arrangement (Atari Cubase)
.art	Graphics (scrapbook) (Art Import)
	Raster graphics (First Publisher)
.arv	Arsiv File
	AutoRoute User Information
.arx    Compressed file archive created by ARX
.asa	MS Visual InterDev file
        Active Server Document
.asc    Ascii text file
	Transport armor file (PGP)
.ascx	Microsoft ASP.NET user control file
.asd    Autosave file (Word for Windows)
	Presentation (Astound)
	Screen driver (Lotus 1-2-3)
.asf    Datafile (STATGRAPHICS)
	Screen font (Lotus 1-2-3)
.ash    Assembly language header file (TASM 3.0)
.asi    Assembler include file (Turbo C - Borland C++)
.asm    Assembly source code file
	Pro/Engineer Assembly file
.asmx	Microsoft .NET Web Service file
.aso    Assembler object (object orientated) file (Turbo Assembler)
.asp	Microsoft Active Server Page
	Aspect source code file (Procomm Plus)
	Association of Shareware Professionals OMBUDSMN.ASP notice
.aspx	Microsoft ASP.NET file
.asr	Ms Automap Route
        Photoshop Scratch Area
.asx	Microsoft Windows Media Active Stream Redirector file
.at2    Auto template (Aldus Persuasion 2.0)
.atm    Adobe Type Manager data/info
.atn	Adobe Photoshop Action file
.atr	Lightscape Material Library
.att	AT&T Group 4 Bitmap
.au     Sound (audio) file (SUN Microsystems)
.aud	Audio file
.aut	AutoIt Script
        PocketWear Car Lease Kit vehicle data file 
        TLG Workplace CD search file
        Xitami Webserver Admin Password file
        GPSMan-autoMapic file
        Signwave Auto-Illustrator file
        Descent Manager Mission file
        Authentication file (various)
        Interactive Pictures iPIX Format
.aux    Auxillary references (TeX/LaTeX)
	Auxiliary dictionary (ChiWriter)
.ava    Publication (Avagio)
.avb	Inoculan Anti-Virus virus infected file
        Microsoft Chat character file  
.avd	Avery Label Pro Data file
.avi    Audio Video Interleaved animation file (Video for Windows)
.avs	Animation file
        Application Visualization System Format
        Stardent AVS-X image
        Winamp Advanced Visualization Studio file
.avx	ArcView file
.aw     Text file (HP AdvanceWrite)
.awb	Lavasoft Ad-aware backup file
.awd	AWD MS Fax
	Award BIOS file
        AWK Language Source Code file
.awe	Adobe Acrobat Bookmark XML file
.awk    Awk script/program
.awm    Movie (Animation Works)
.awr	Telsis Digital Audio file
.aws    Data (STATGRAPHICS)
.ax	DirectShow Filter
.axd	Avery Label Pro Re-Index file
.axg	MS Autoroute Trip file
.axe	Paradigm C++ Integrated Debugger file
        ChordMaster
        MS Autoroute export file
.axl	ArcIMS XML Project file
.axt	ZenWorks snAPPshot ASCII Application Object template
        Photoshop Replace Color/Color Range
.b      Batch list (APPLAUSE)
.b&w    Black and white graphics (atari - mac)
	    Mono binary screen image (1st Reader)
.b1n    Both mono and color binary screen image (1st Reader)
.b1s	Booksmith
.b30    Printer font (JLaser - Cordata) (Ventura Publisher)
.b3d	3D Builder file
.b8     Raw graphics (one byte per pixel) plane two (PicLab)
.b_w    Black and white graphics (atari - mac)
.bad    Bad file (Oracle)
.bag	PMMail Mail Index file
        OS/2 Netfinity Manager Sysinfo file
        AOL Instant Messenger file
.bak    Backup file
.bal    Music score (Ballade)
.bar    Horizontal bar menu object file (dBASE Application Generator)
.bas    Basic source code file
.bat    Batch file (DOS)
.bb     Database backup (Papyrus)
.bbl    Bibliographic reference (TeX/BibTeX)
.bbm    Brush (Deluxe Paint)
.bbs    Bulletin Board System announce or text info file
.bcf	ConfigSafe Snapshot index
        The Sims (Maxis) File
.bch    Batch process object file (dBASE Application Generator)
	Datafile (Datalex EntryPoint 90)
.bck	Backup
.bcm	MS Works Communications file
.bco    Outline font description (Bitstream)
.bcp    Borland C++ makefile
.bcw    Environment settings (Borland C++ 4.5)
.bde	Borland Database Engine
.bdf    Bitmap Distribution Format font file (X11)
	Datafile (Egret)
.bdr    Border (MS Publisher)
.bez    Outline font description (Bitstream)
.bf2    Bradford 2 font
.bfm    Font metrics (unix/Frame)
.bfx    Fax (BitFax)
.bga    Bitmap graphics
.bgi    Borland Graphics Interface device driver
.bgl	Flight Simulator scenery file
.bib    Bibliography (ASCII)
	Database - not compatible with TeX format (Papyrus)
	Literature database (TeX/BibTeX)
.bic	Civilization III Scenario
.bid	BidMaker 2002 file
.bif    Binary Image Format b&w graphics (Image Capture board)
.bik	BioCharter Profile backup file
        Bink Game video file
.bin    Binary file
.bio    OS/2 BIOS
.bit    Bitmap Image  
        Worms Armageddon Imported Map
        Worms World Party Imported Map
.bk     Faxbook (JetFax)
.bk!    Document backup (WordPerfect for Win)
.bk1    Timed backup file for document window 1 (WordPerfect for Win)
.bk2    Timed backup file for document window 2 (WordPerfect for Win)
.bk3    Timed backup file for document window 3 (WordPerfect for Win)
.bk4    Timed backup file for document window 4 (WordPerfect for Win)
.bk5    Timed backup file for document window 5 (WordPerfect for Win)
.bk6    Timed backup file for document window 6 (WordPerfect for Win)
.bk7    Timed backup file for document window 7 (WordPerfect for Win)
.bk8    Timed backup file for document window 8 (WordPerfect for Win)
.bk9    Timed backup file for document window 9 (WordPerfect for Win)
.bkf	Microsoft Backup file
.bkg	Background file
        UWXAFS Binary Format Data file
.bkp    Backup file (Write - TurboVidion DialogDesigner)
.bkw    Mirror image of font set (FontEdit)
.blb	DreamWorks Resource Archive 
.bld    Bloadable picture (BASIC)
.blk    Temporary file (WordPerfect for Win)
        Lightscape Block Library
        Alias Wavefront Image
        VersaPro Block
.blt	Saved AIM Buddy List file
	Wordperfect for DOS file
.bm     Bitmap graphics
.bmf	Corel Image file
.bmk    Help Bookmarks (Windows 3.x)
.bmp    Bitmap graphics (PC Paintbrush - many)
.bmx	Buzz music file
.bnd	Typequick file
.bnk    Adlib instrument bank file
.bob	BobDown Downloading Program
        Bob Raytracer  
.bom	MicroSim PCBoard Bill of Materials
	Orcad Schematic Capture Bill of Materials file
	Softshare Delta Business Object Model
.boo    Compressed file ASCII archive created by BOO (msbooasm.arc)
.box	Myriad Jukebox file
	Notes Mailbox
.bpc    Chart (Business Plan Toolkit)
.bpl	Delphi Library
.bpt    Bitmap fills file (CorelDRAW)
.bqy	BrioQuery file
.br     Script (Bridge)
.brd    Eagle Layout file
.brf	Braille ASCII file 
.brk    Fax (Brooktrout Fax-Mail)
.bro	Tree Professional Broadleaf Creator file
.brp	Tree Professional Broadleaf Creator image
.brt	Micrografx Picture Publisher file
.brx	Multimedia browsing index
.bsa    Compressed file archive created by BSARC
.bsb	MapInfo Sea Chart
	SWAT Sub-basin Output file
.bsc    Compressed Apple II file archive created by BINSCII
	Database (Source Browser)
	Pwbrmake object file (MS Fortran)
.bsl	BSPlayer Configuration file
.bsp	Half-life/TFC/CS Map
	Quake Map
.bst	BibTeX Style file
.btm    Batch To Memory batch file (4DOS)
.bto	Baytex Organix! 2001 Language Kit
.btr	Btrieve Database file
	MS Frontpage-related file
.bud	Quicken Backup
.bug    Bugs and Problems
.bup    Backup file
.but    Button definitions (Buttons!)
.buy    Datafile format (movie)
.bv1    Overflow file below insert point in Doc 1 (WordPerfect for Win)
.bv2    Overflow file below insert point in Doc 2 (WordPerfect for Win)
.bv3    Overflow file below insert point in Doc 3 (WordPerfect for Win)
.bv4    Overflow file below insert point in Doc 4 (WordPerfect for Win)
.bv5    Overflow file below insert point in Doc 5 (WordPerfect for Win)
.bv6    Overflow file below insert point in Doc 6 (WordPerfect for Win)
.bv7    Overflow file below insert point in Doc 7 (WordPerfect for Win)
.bv8    Overflow file below insert point in Doc 8 (WordPerfect for Win)
.bv9    Overflow file below insert point in Doc 9 (WordPerfect for Win)
.bwb    Spreadsheet application (Visual Baler)
.bwi	Blindread/Blindwrite
.bwr    Beware (buglist) (Kermit)
.bwt	Blindread/Blindwrite
.bxx	blaxxun Contact
.bz2	Bzip 2 UNIX Compressed file 
.c      C source code file
	Compressed unix file archive created by COMPACT
.c++    C++ source code file
.c--    Source code (Sphinx C--)
.c00    Print file (Ventura Publisher)
.c60	Midtronics Battery Management Software
.c86    C source code file (Computer Innovation C86)
.ca     Initial cache data for root domain servers (Telnet)
.cab    Cabinet File (Microsoft installation archive)
.cad    Softdesk Drafix CAD File
.cac    dBASE IV executable when caching on/off (see cachedb.bat)
.cad    Document (Drafix Windows CAD)
.cag	MS Clip Gallery Catalog file
.cal    Calendar file (Windows 3.x)
	Calendar Maker Pro
	Spreatsheet (SuperCalc)
.cam	Casio Camera Graphic
.can    Fax (Navigator Fax)
.cap    Caption (Ventura Publisher)
	Session capture file (Telix)
.car	AtHome Assistant file
        Carrara Environment
        NeoBook Cartoon
.cas    Comma-delimited ASCII File
.cat    Catalog (dBASE IV)
.cbc    Fuzzy logic system (CubiCalc)
.cbf	Calendar Builder file
.cbl    Cobol source code file
.cbm    Compiled bitmap graphics (XLib)
.cbp	CentralBuilder Project
.cbt    Computer Based Training (many)
.cc     C++ source code file
.cca	CC:Mail archive file
.ccb    Visual Basic Animated Button Configuration
.ccc    Bitmap graphics (native format) (Curtain Call)
.ccd	CloneCd Related file
        Vector CAD Program file
.cce	Calendar Creator 2 Event file
.ccf    Communications configuration file (Symphony)
.cch    Chart (CorelChart)
.ccl    Communication Command Language file (Intalk)
.cco    Btx Graphics file (XBTX)
.cct	Macromedia Director Shockwave file
.ccx	Corel PrintHouse file
.cda	CD Audio Track
.cdb    Card database (CardScan)
	Main database (TCU Turbo C Utilities)
.cde	Honeywell Hybrid Control Designer
.cdf    Graphics (netcdf)
.cdi	Phillips Compact Disk Interactive format
.cdk    Document (Atari Calamus)
.cdl	CaseWare Working Papers Document Link
	SignLab Vector Graphic
.cdm	Visual dBASE Custom Data Module
.cdp	CD/Spectrum Pro
.cdr    Vector graphics (CorelDRAW native format)
.cdt    Data (CorelDraw 4.0)
.cdx    Compound index (FoxPro)
.ce     Main.ce (The FarSide Computer Calendar)
.ceg    Bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics)
.cel    Graphics (Autodesk Animator - Lumena)
.cf     Configuration file (imake)
.cfb	Comptons multimedia file
.cfg    Configuration
.cfl    Chart (CorelFLOW)
.cfm	ColdFusion Markup Language (Allaire)
.cfn    Font data (Atari Calamus)
.cfo    C Form Object internal format object file (TCU Turbo C Utilities)
.cfp    Fax (The Complete Fax Portable)
.cga    CGA display font (Ventura Publisher)
.cgi    Common Gateway Interface script
.cgm    Computer Graphics Metafile vector graphics (A&L - HG - many)
.ch     Header file (Clipper 5)
.ch3    Chart (Harvard Graphics 3.0)
.ch4    Presentation (Charisma 4.0)
.chd    Font descriptor (FontChameleon)
.chi    Document (ChiWriter)
.chk    Recovered data (ChkDsk)
	Temporary file (WordPerfect for Win)
.chl    Configuration History Log
.chm	Compiled HTML
.chn    Data (Ethnograph 3)
.cho	ChordPro file
.chp    Chapter file (Ventura Publisher)
.chr    Character set (Turbo C - Turbo Pascal)
.cht    Chart (Harvard Graphics 2.0 - SoftCraft Presenter)
	Interface file for ChartMaster (dBASE)
.cif    Caltech Intermediate Format graphics
	Chapter information (Ventura Publisher)
.cil	Clip Gallery Download Package
.cix    Database index (TCU Turbo C Utilities)
.ckb    Keyboard mapping (Borland C++ 4.5)
.cl     Common LISP source code file
.cl3	Easy CD Creator Layout file
.cl4	Easy CD Creator Layout file
.cl5	Easy CD Creator Layout file
.clb	ICQ Contact List
        MS Office XP Developer Code Librarian
        cdrLabel Compact Disc Label
.clp    Clip art graphics (Quattro Pro)
	Clipboard file (Windows 3.x)
	Compiler script file (clip list) (Clipper 5)
.clr    Color binary screen image (1st Reader)
	Color definitions (Photostyler)
.cls    C++ class definition file
.cm     Data file (CraftMan)
.cmd    Batch file (OS/2)
	Command (dBASE - Waffle)
	External command menu (1st Reader)
.cmf    FM-music file (Creative Music File)
.cmk    Card (Card Shop Plus)
.cmm    Cmm script (batch) file (CEnvi)
.cmo	Virtools Composition file
.cmp    Header file for PostScript printer files (CorelDRAW)
	User dictionary (MS Word for DOS)
	Bitmap graphics (Lead CMP compression)
.cmq	Culturemetrics file
.cmt	Culturemetrics file
.cmv    Animation (CorelMove CorelDraw 4.0)
.cmx	Corel PhotoPaint Image
        Corel Presentation Exchange Image
        The Sims (Maxis) 3D Body Mesh Data
        Apple Viewer file
.cnc    CNC general program data
.cnd	ControlDraw file
        Embroidery Design file
.cnf    Configuration (program - printer setup)
.cnt	Helpfile contents
.cnv    Data conversion support file (Word for Windows)
	Temporary file (WordPerfect for Win)
.cob    Cobol source code file
.cod    Datafile (Forecast Plus - MS Multiplan - StatPac Gold)
	Program compiled code (FORTRAN)
	Template source file (dBASE Application Generator)
	Videotext file
.col    Color palette (Autodesk Animator - many)
	Spreadsheet (MS Multiplan)
.com    Command (memory image of executable program) (DOS)
.con    Configuration file (Simdir)
.cor	Protein Structure file
        Web GPS Correction Server Export file
        WMOVIEC Input file
.cpd    Script (Complaints Desk)
.cpe	MS Fax Cover Sheet
.cpf    Fax (The Complete Fax)
.cph	Corel Print House image
.cpi    Code Page Information file (DOS)
	Colorlab Processed Image bitmap graphics
.cpl    Control panel file (Windows 3.x)
	Presentation (Compel)
.cpo	Corel Print House file
.cpp    C++ source code file
	Presentation (CA-Cricket Presents)
.cps    Backup of startup files by Central Point PC Tools autoexec.cps
	coloured postscript files 
.cpt    Compressed Mac file archive created by COMPACT PRO (ext-pc.zip)
	Corel Photo-Paint Image
	Encrypted memo file (dBASE)
	Template (CA-Cricket Presents)
.cpx	Control Panel Applet
	Corel Presentation Exchange Compressed Drawing
.cpy	Copy Books Data file
.cpz    Music text file (COMPOZ)
.crd    Cardfile (Windows 3.x - YourWay)
	ColdRED Script file 
	Guitar Chord file
.crf    Cross-reference (MS MASM - Zortech C++)
.crh	Links Games Course file
	MS Golf Image file
.crp    Encrypted database (dBASE IV)
.crs    File Conversion Resource (WordPerfect 5.1)
.crt    Terminal settings information (Oracle)
.cru    Compressed file archive created by CRUSH
.crx	Links Games Course file
.crz	Links Games Course file
.csa	Comma Deliminated Text
	Ultimate Ride Roller Coaster
.csf	Van Dyke's CRT/SecureCRT Script file
.csg    Graph (Statistica/w)
.csh	Hamilton Labs C Shell Script file
.csk	Claris Works
.csm    Precompiled headers (Borland C++ 4.5)
.csp    Pc Emcee Screen Image file (Computer Support Corporation)
.css    Datafile (CSS - Stats+)
	Datasheet (Statistica/w)
.cst	Macromedia Director Cast file
.csv    Comma Separated Values text file format (ASCII)
	Adjusted EGA/VGA palette (CompuShow)
.ctc    Control file (PC Installer)
.ctd	Cobra Track Dump
	Cardtable file
	Marine Data file
	Simpsons Cartoon Studio Export file
.ctf    Character code translation file (Symphony)
.ctg	Cartridge Definition file
        ChessBase Opening Book
        Canon Powershot Pro 70 Info file
.ctl    Control file (dBASE IV - Aldus Setup)
	Setup information
.ctt	Labview file
.ctx    Course TeXt file (Microsoft online guides)
	Ciphertext file (Pretty Good Privacy RSA System)
.cty	SimCity City file
.cue	MS Cue Cards data
.cuf    C Utilities Form definition (TCU Turbo C Utilities)
.cul    Windows cursor library (IconForge, ImageForge, ImageForge PRO)
.cur    Cursor image file (Windows 3.x)
.cut    Bitmap graphics (Dr. Halo)
.cv4    Color file (CodeView)
.cv5	Canvas version 5
.cva	Compaq Diagnostics
.cvp    Cover page (WinFax)
.cvr	WinFax Cover Sheet
        ElectraSoft Fax Cover Sheet
.cvs    Graphics (Canvas)
.cvt    Backup file for CONVERTed database file (dBASE IV)
.cvw    Color file (CodeView)
.cwk	Claris Works data
.cwz	CropWalker file
.cxt	Macromedia Director Protected Cast file
.cxx    C++ source code file (Zortech C++)
.d2s	Character file (Diablo 2)
.d64	Commodore 64 Emulator Disk Image
.dat    Data file in special format or ASCII
	Gunlok Archive
        Mitsubishi DJ-1000 and Photorun Native Format
        Nascar Racing Archive
        SPOT Graphic
	WordPerfect Merge Data
.db     Configuration (dBASE IV - dBFast)
	Database (Paradox - Smartware)
.db$    Temperature debug info (Clarion Modula-2)
	Temporary file (dBASE)
.db2    Database (dBASE II)
.db3    Database (dBASE III)
.dba    Datafile (DataEase)
.dbb	ANSYS Database Backup
        Mopheus music file
.dbd    Business data (Business Insight)
	Debug info (Clarion Modula-2)
.dbf    Database file (dBASE III/IV - FoxPro - dBFast - DataBoss)
	Oracle 8.x Tablespace File
.dbg    Symbolic debugging information (MS C/C++)
.dbk    Database backup (dBASE IV)
.dbl	Windows XP Activation file
.dbm    Datafile (DataEase)
	Menu template (DataBoss)
.dbo    Compiled program (dBASE IV)
.dbs    Database in SQL Windows format
	Datafile (PRODAS)
	Printer description file (Word - Works)
.dbt    Data Base Text (Clipper)
	Foxbase+ style memo (FoxPro)
	Memo file for database w/same name (dBASE IV - dBFast)
.dbw    Windows file (DataBoss)
.dbx	Database
        DataBeam Image
        MS Visual Foxpro Table
.dca    Document Content Architecture text file (IBM DisplayWrite)
.dcf    Disk image file
.dcm	DCM Module Format
	Dicom  
.dcp    Data CodePage (OS/2)
.dcr	Kodak Proprietary Image Format
	Shockwave file
.dcs    Bitmap graphics (CYMK format) (QuarkXPress)
	Datafile (ACT! Activity Files)
.dct    Database dictionary (Clarion Database Developer)
	Spell checking dictionary (Harvard Graphics 3.0 - Symphony)
.dcx    FAX Image
        ElectraSoft Fax
        PC-Paintbrush file
        Bitmap Graphics  (Multipage PCX)  
        Macros
        MS Visual Foxpro Database Container
.dd     Compressed Macintosh file archive created by DISKDOUBLER
.ddb    Bitmap graphics
.ddf	MS Data Definition Language file 
.ddi    Diskdupe Image file (ddupe322.zip)
.ddp    Device Driver Profile file (OS/2)
.de	MetaProducts Download Express incompletely downloaded file
.deb    Debug script (DOS Debug)
.dec	VersaPro Declaration file
.def    Assembly header file (Geoworks)
	Defaults - definitions
.dem    Demonstration
	Graphics (VistaPro)
.des	Description Text
        Tribes 2 Game file
        Quickbooks Template
        Pro/DESKTOP file
        Interscope BlackBox file
.dev    Device driver
.dfd    Data Flow Diagram graphic (Prosa)
.dff	Criterion RenderWare 3.x 3D object format
.dfi    Outline font description (Digifont)
.dfl    Default program settings (Signature)
.dfm    Data Flow Diagram model file (Prosa)
.dfs    Delight Sound file
.dft	Fakt2000 file
        SolidEdge CAD file
        Workshare Synergy file
        PC Draft file
.dfv    Printing form (Word)
.dgn    Graphics (MicroStation)
.dgr	Fax Page (MS Outlook Express)
        DART Pro 98 File Group Details
.dgs    Diagnostics
.dh     Dependency information for .ph (Geoworks)
.dhp    Dr. Halo PIC Format graphics (Dr. Halo II - III)
.dht    Datafile (Gauss)
.dia    Diagraph graphics (Computer Support Corporation)
.dib    Bitmap graphics (Device-Independent Bitmap)
.dic    Lotus Notes / Domino dictonary file
.dif    Database (VisiCalc)
	Output from Diff command - script for Patch command
	Text file (Data Interchange Format)
.dig	Digilink Format
	Sound Designer Audio File
	Text Document
.dip    Graphics
.dir    Dialing directory file (Procomm Plus)
	Directory file (VAX)
	Movie (MacroMind Director 4.x)
.dis    Distribution file (VAX Mail)
	Thesaurus (CorelDraw)
.diz    Description file (Description In Zip)
.dje	MattBatt iAM-player
.dkb    Raytraced graphics (DKBTrace)
.dl     Animation (Italian origin)
.dl_	Compressed .dll file in an Install Archive
.dld    Data (Lotus 1-2-3)
.dlg    Dialog resource script file (MS Windows SDK)
.dll    Dynamic Link Library (Windows 3.x - OS/2)
	Export/import filter (CorelDRAW)
.dls    Setup (Norton Disklock)
.dmf	Delusion/XTracker digital music file
        Packed Amiga Disk Image
.dmg	Macintosh OS X Disk Image file 
.dml	Medical Manager DML System Script
.dmo    Demo (Derive)
.dmp    Dump file (eg. screen or memory)
.dms    Compressed Amiga file archive created by DISKMASHER
.dna	Desktop DNA data storage file 
.dnasym	Desktop DNA compiled application script 
.dnax   Desktop DNA exclusion list (text) 
.dne	Netica Bayes net file (Norsys Software Corp.)
.dng	Dungeon file
.dnl	DigitalWebBook Electronic Book 
	netMod Modem Firmware Upgrade file
.doc    Document text file
.dog    Screen file (Laughing Dog Screen Maker)
.doh    Dependency information for .poh (Geoworks)
.dos    External command file (1st Reader)
	Network driver (eg. pkt_dis.dos)
	Text file containing DOS specific info
.dot    Line-type definition file (CorelDRAW)
	Template (Word for Windows)
.dox    Text file (MultiMate 4.0)
.doz    Description Out of Zip (VENDINFO)
.dp     Calendar file (Daily Planner)
	Data file (DataPhile)
.dpk	Delphi Package file
.dpp	Serif DrawPlus Drawing
.dpr    Default project- and state-related information (Borland C++)
.dps	DivX XP Skin
.dpt	Desktop DNA template
.drs    Display Resource (WordPerfect for Win)
.drv    Device driver eg. for printer
.drw    Drawing (various)
	Vector graphics (Micrografx Designer)        
.ds4    Vector graphics (Micrografx Designer 4.0)
.dsa	DasyTec DASYLab file
.dsb	DasyTec DASYLab file
.dsc    Discard file (Oracle)
.dsd    Database (DataShaper)
.dsf	Micrografx Designer
        PC-TRUST Document Signer
        Delusion/XTracker Digital Sample
.dsk    Project desktop file (Borland C++ - Turbo Pascal)
.dsm    Digital sound module (DSI)
.dsn    Design (Object System Designer)
.dsp    Display parameters (Signature)
	Graphics display driver (Dr.Halo)
	MS Developer Studio Project
.dsr    Driver Resource (WordPerfect for Win)
.dss    Screensaver file (DCC)
	Sound (Digital Soup)
.dst	PC-RDist Distribution file 
        Embroidery Machine Stitch file (VeePro)
.dsw    Desktop settings (Borland C++ 4.5)
.dsy	PC Draft Symbol Library
.dt_    Data fork of a Macintosh file (Mac-ette)
.dta    Data file (Turbo Pascal - PC-File - Stata)
.dtd	SGML Document Definition file
.dtf    Database file (PFS - Q&A)
.dtp    Document (Timeworks Publisher3)
	Publication (Publish-It!)
.dup	Duplicate Backup
.dus	Readiris font dictionary
.dvc    Data (Lotus 1-2-3)
.dvf	DV Studio Camcorder Graphics file
.dvi    Device Independent document (TeX)
.dvp    Desqview Program Information file (DESQview)
	Device parameter file (AutoCAD)
.dw2    Drawing (DesignCAD for windows)
.dwc    Compressed file archive created by DWC (dwc-a501.exe)
.dwd	Davka Writer file
	DiamondWare Digitized file
.dwf	Autodesk WHIP! Drawing Web file
        MS WHIP autoCAD REader Drawing Web file
.dwg    Drawing (Drafix)
	Drawing database (AutoCAD)
.dwt	AutoCAD Template/Prototype file
        Macromedia Dreamweaver Template file
        Demon's World Game Texture file
.dx     Text file (DEC WPS/DX format - DEC WPS Plus)
.dxf    Drawing Interchange File Format vector graphics (AutoCAD)
.dxn    Fax (Fujitsu dexNET)
.dxr	Dependable Strengths Administrator Resources
	Green Building Advisor file
	Macromedia Director Protected Movie file
.dyc	ICUII Videochat file
.dyn    Data (Lotus 1-2-3)
.dz	Dzip Compressed file
.ear	Java Enterprise Application Packaging Unit
.eas	Elite Visual Basic API Spy
.ebj    Error-checking object file (Geoworks)
.ebo	MS Reader Ebook Format
.ebp	Pocket PC WindowsCE Project file
.ecf	WinFax Office Add-in file
.eco	NetManage ECCO file
.ecw	Ensoniq Waveset Format
        EclipseCrossword Crossword Puzzle
.edb	MS Exchange Database
	ROOTS3 geneological data
.edl	Edit Decision List (management for video/film post production)
.eds	Ensoniq SQ80 disk image
.edt    Default settings (VAX Edt editor)
.eeb    Button bar for Equation Editor (WordPerfect for Win)
.efe	Ensoniq EPS file
.eft    High resolution screen font (ChiWriter)
.efx    Fax (Everex EFax)
.ega    EGA display font (Ventura Publisher)
.ek5	SonarData Echoview file
.ek6	SonarData Echoview file
.ekm	EXP: The Scientific Word Processor Macro
.el     Elisp source code file (Emacs lisp)
.elc    Compiled ELISP code (Emacs lisp)
.elm	MS FrontPage Theme-Pack file 
.elt    Event list text file (Prosa)
.email	Outlook Express Mail Message
.emb    Everest Embedded Bank File
.emd    ABT Extended Module
.emf    Enchanced Metafile graphics
.eml    MS Outlook Express Electronic Mail
.emp	E-Music File Format
.ems    PC Tools Enhanced Menu System Config
.emu    Terminal emulation data (BITCOM)
.emx	Ensuredmail encrypted file/e-mail message
.enc    Encoded file - UUENCODEd file (Lotus 1-2-3 - uuexe515.exe)
	Music (Encore)
.end    Arrow-head definition file (CorelDRAW)
.eng    Dictionary engine (Sprint)
	Graphics (charting) (EnerGraphics)
.ens	EndNote Styles file
.env    Enveloper macro (WOPR)
	Environment file (WordPerfect for Win)
.eot	MS WEFT Embedded OpenType file
.epd    Publication (Express Publisher)
.epi    Document (Express Publisher)
.epp	EditPad Pro Project
.eps    Encapsulated PostScript vector graphics (Adobe Illustrator)
	Printer font (Epson - Xerox...) (Ventura Publisher)
.eqn    Equation (WordPerfect for Win)
.erd    Entity Relationship Diagram graphic file (Prosa)
.erm    Entity Relationship Diagram model file (Prosa)
.err    Error log
	Error messages for command line compilers
.esh    Extended Shell batch file
.esl	MS Visual FoxPro Distributable Support Library
.esp	Ventura file
.ess	EXP: The Scientific Word Processor Style Sheet
.est	MS Streets & Trips 2001 Trip file
.etf	Enriched Text file
	PolyEdit file
.eth    Document (Ethnograph 3)
.etx    Structure Enhanced (setext) text
.ev	SonarData Echoview file
.evi	SonarData Echoview file
.evl	SonarData Echoview file
.evr	SonarData Echoview file
.evt    Event log
.evy    Document (WordPerfect Envoy)
.ewd    Document (Express Publisher for Windows)
.ewl	EclipseCrossword Word List
	Microsoft Encarta Document
.ex_	Compressed .EXE File in an Install Archive
.ex3    Device driver (Harvard Graphics 3.0)
.exc    Rexx source code file (VM/CMS)
	Exclude file for Optimize (do not process) (QEMM)
.exd	Control Information Cache
.exe    Directly executable program (DOS)
.exm    Msdos executable, system-manager compliant (HP calculator)
.exp	ICQ Saved Chat file
.ext    Extension file (Norton Commander)
.exx    Intermediate file by MsgPut (IBM LinkWay)
.ezf    Fax (Calculus EZ-Fax)
.ezm	Text file 
.ezp	Edify Electronic Workforce Backup Utility
.f      Fortran source code file
	Compressed file archive created by FREEZE
.f01    Fax (perfectfax)
.f06    Dos screen text font - height 6 pixels (fntcol13.zip)
.f07    Dos screen text font - height 7 pixels (fntcol13.zip)
.f08    Dos screen text font - height 8 pixels (fntcol13.zip)
.f09    Dos screen text font - height 9 pixels (fntcol13.zip)
.f10    Dos screen text font - height 10 pixels (fntcol13.zip)
.f11    Dos screen text font - height 11 pixels (fntcol13.zip)
.f12    Dos screen text font - height 12 pixels (fntcol13.zip)
.f13    Dos screen text font - height 13 pixels (fntcol13.zip)
.f14    Dos screen text font - height 14 pixels (fntcol13.zip)
.f16    Dos screen text font - height 16 pixels (fntcol13.zip)
.f2	FLASH BIOS file
.f2r    Linear module (music) (Farandole)
.f3r    Blocked module (music) (Farandole)
.f77    Fortran 77 source code file
.f96    Fax (Frecom FAX96)
.fac    Face graphics
.faq    Frequently Asked Questions text file
.far	Farandoyle Tracker Music Module
        The Sims (Maxis) Archive file
.fav	MS Outlook Bar Shortcuts
.fax    Fax (raster graphics) (most Fax programs)
.fbc	FamilyTree Compressed backup file
.fbk	Navison Financials Backup
        FamilyTree Backup file
.fc     Spell checking dictionary (Harvard Graphics 2.0)
.fcd	Virtual CD-ROM
        FastCAD/EasyCAD Output
        Patton & Patton Flow Charting 3 file
        IsoBuster file
.fcm    Binary file patch file (forward compression)(jlpak10.zip)
.fcp	FLAMES Checkpoint Restart file (Ternion)
.fcs	Flow Cytometry Standard Format
        Fantasy Football League Organizer file
        RealProducer Pro Settings
        c-tree Server/Plus Data file
        Canon Zoom Browser EX file
        CD Trustee file
        Spectrum Server Log file
.fcw	Campaign Cartographer 2 file
.fd     Declaration file (MS Fortran)
	Field offsets for compiler (DataFlex)
.fdf	Adobe Acrobat Forms document
.fdr	Final Draft Document file
        Embroidery Design file
.fdw    Form (F3 Design and Mapping)
.feb    Button bar for Figure Editor (WordPerfect for Win)
.fes	Fabio Editing Software
.ff     Outline font description (Agfa Compugraphics)
.ffa	MS Fast Find file
.fff    Fax (defFax)
.ffl	MS Fast Find file
.ffo	MS Fast Find file
.fft    Dca/FFT Final Form Text text file (DisplayWrite)
.ffx	Microsoft Fast Find file
.fgd	Folder Guard Data
	Half-life Modification Map Configuration file
	Digital Raster Graphic Metadata file
.fh3    Vector graphics (Aldus FreeHand 3.x)
.fh4    Vector graphics (Aldus FreeHand 4.x)
.fh5	Freehand 5
.fh6	Freehand 6
.fh7	Freehand 7
.fh8	Macromedia Freehand 8
.fh9	Macromedia Freehand 9
.fh10	Macromedia Freehand 10
.fi     Interface file (MS Fortran)
.fif    Fractal Image Format file
.fig	REND386/AVRIL Graphic
	Super Nintendo Game-console ROM Image  
.fil    File template (Application Generator)
	Files list object file (dBASE Application Generator)
	Overlay (WordPerfect)
.fin    Print-formatted text file (Perfect Writer - Scribble - MINCE)
.fit    Fits graphics
	File Index Table (WindowsNT)
.fix    Patch file
.fky    Macro file (FoxPro)
.fla	Macromedia Flash
.flb    Format library (Papyrus)
.flc    Animation (Autodesk Animator)
.fld    Folder (Charisma)
.fli    Tex font library (EmTeX)
	Animation (Autodesk Animator)
.flm    Film Roll (AutoCAD/AutoShade)
.flo    Micrografx FlowCharter
.flp	FlipAlbum file
	Fruityloops Saved file
.flt	Asymetrix Graphics Filter Support file
	CoolEdit Pro Filter
	Corel Graphic Filter
	FileMaker Filter
	FLIC Animation (DTA)
	Micrografx Picture Publisher Filter
	MS Graphics Filter
	MulitGen Open Flight file
	OS/2 Warp Filter Device Driver
	StarTrekker Music Module
	WinFlash Educator Flashcard Compiled Test file
.flv	Macromedia Flash Video file
.flx    Compiled binary (DataFlex)
.fm     Spreatsheet (FileMaker Pro)
.fm1    Spreadsheet (Lotus 1-2-3 release 2.x)
.fm3    Device driver (Harvard Graphics 3.0)
	Spreadsheet (Lotus 1-2-3 release 3.x)
.fmb    File Manager Button bar (WordPerfect for Win)
.fmf    Font or icon file (IBM LinkWay)
.fmk    Makefile (Fortran PowerStation)
.fmo    Compiled format file (dBASE IV)
.fmp	FileMaker Pro Document
.fmt    Format file (dBASE IV - FoxPro - Clipper 5 - dBFast)
	Style sheet (Sprint)
.fmv	Frame Vector Metafile
.fn3    Font file (Harvard Graphics 3.0)
.fnt    Font file (many)
.fnx    Inactive font (Exact)
.fo1    Font file (Borland Turbo C)
.fo2    Font file (Borland Turbo C)
.fol    Folder of saved messages (1st Reader)
.fon    Dialing directory file (Telix)
	Font file (many - Windows 3.x font library)
	Log of all calls (Procomm Plus)
.for    Fortran source code file
	Form (WindowBase)
.fot    Installed Truetype font (Windows Font Installer)
.fp     Configuration file (FoxPro)
.fp3	FileMaker Pro 3.0 and earlier files
.fp4	FileMaker Pro 4.0
.fp5	FileMaker Pro 5.0 and later files 
.fpb	FLAMES Playback file (Ternion)
.fpc    Catalog (FoxPro)
.fpk	JetForm FormFlow file
.fpr	FLAMES Prototype file (Ternion)
.fpt    Memo (FoxPro)
.fpw    Floorplan drawing (FloorPLAN plus for Windows)
.fpx	FlashPix Bitmap
.fqy	FLAMES FLARE Command file (Ternion)
.fr3    Renamed dBASE III+ form file (dBASE IV)
.frc	FLAMES RECORD Output file; FLARE Input file (Ternion)
.fre	Creative Digital Blaster Digital VCR file
        Male Normal CT
.frf    Font (FontMonger)
.frg    Uncompiled report file (dBASE IV)
.frl	FormFlow file
.frm    Form (Visual Basic)
	Report file (dBASE IV - Clipper 5 - dBFast)
	Text (order form)
.fro    Compiled report file (dBASE IV)
.frp    Form (PerForm PRO Plus - FormFlow)
.frs    Screen Font Resource (WordPerfect for Win)
.frt    Report memo (FoxPro)
.frx    Report (FoxPro)
.fsc	FLAMES Scenario file (Ternion)
.fsh	EA Sports Game Graphic Editor file
.fsl    Form (Paradox for Windows)
.fsm    Farandoyle Sample format music
.fst    Linkable program (dBFast)
.fsx    Data (Lotus 1-2-3)
.fsy	Fileware's Filesync
.ftm    Font file (Micrografx)
.ftp    Configuration (FTP Software PC/TCP)
.fts	Windows Help Full-Text Search Index file
.ftw	Family file
	FontTwister
.fvt	Interlock Public Computer Utility
.fw     Database (FrameWork)
.fw2    Database (Framework II)
.fw3    Database (Framework III)
.fx     On-line guide (FastLynx)
.fxd    Phonebook (FAXit)
.fxm	WinFax/WinFax MiniViewer Fax
.fxo	Fax Image Document
.fxp    Compiled format (FoxPro)
.fxr	WinFax Received Document
.fxs    Fax Transmit Format graphics (WinFax)
.g      Data chart (APPLAUSE)
.g3f	Zetafax TIFF file (fine resolution)
.g3n	Zetafax TIFF file (normal resolution)
.g8     Raw graphics (one byte per pixel) plane three (PicLab)
.gal	Corel Multimedia Manager Album
.gam    Fax (GammaFax)
        TADS 2.x Game file
        Baldur's Gate Game file
        Animated E-mail 
.gat	Gator file
.gb	GameBoy ROM
.gba	Game Boy Advanced ROM
	GrabIt Batch files
.gbc	Game Boy COlor ROM
.gbd	Gator Banner file
.gbl    Global definitions (VAXTPU editor)
.gbr	GIMP Brush file
	Gerber Format file
.gbx	Gerber file 
.gc1    Lisp source code (Golden Common Lisp 1.1)
.gc3    Lisp source code (Golden Common Lisp 3.1)
.gcd    Graphics
.gdb	Interbase Database
        Group Mail file
.gdf    Dictionary file (GEOS)
.gdr	Bitmap Font file (SymbianOS)
.ged	Editor's native file format (Arts & Letters)
	GEDCOM Family History file
	Graphic Environment Document
	Graphics editor file (EnerGraphics)
.gem    Vector graphics (GEM - Ventura Publisher)
.gen    Compiled template (dBASE Application Generator)
	Generated text (Ventura Publisher)
	Genius Family Tree
.geo    Geode (Geoworks)
.gfb    Compressed GIF image created by GIFBLAST (gifblast.exe)
.gft    Font (NeoPaint)
.gfx	Genigraphics Graphics Link Presentation
.gho	Symantec Ghost Disk image file
.ghs	Lasertank High Scores
	Symantec Ghost Disk Image Span file
.gib    Chart (Graph-in-the-Box)
.gid	Windows Help index file
.gif    Graphics Interchange Format bitmap graphics (CompuShow)
.gig	Sound file
.giw    Presentation (Graph-in-the-Box for Windows)
.gl     Animation (GRASP GRAphical System for Presentation)
.glm    Datafile (Glim)
.gls    Datafile (Across)
.gly    Glossary (MS Word)
.gmf    CGM graphics (APPLAUSE)
.gmp    Geomorph tile map (SPX)
.gno	Genopro Genealogy Document file
.goc    Goc source code file (Geoworks)
.goh    Goc header file (Geoworks)
.gp     Geode parameter file (Geoworks Glue)
.gp3	CCITT Group 3 file
	GuitarPro 3
.gpd	VISUAL EPR Input Data for PARAMS.EXE
.gph    Graph (Lotus 1-2-3/G)
.gpk    Omnigo program package
.gr2    Screen driver (Windows 3.x)
.gra    Datafile (SigmaPlot)
.grb    Ms-DOS Shell Monitor file (MS-DOS 5)
.grd	Gradebook Power file
        Map Projection Grid file
.grf    Graph file (Graph Plus - Charisma)
.grl	Matlab Graphic Format
.grp    Group file (Windows 3.x - Papyrus)
	Pictures group (PixBase)
.grx	File list (GetRight)
.gry    Raw GREY graphics
.gs1    Presentation (GraphShow)
.gsd    Vector graphics (Professional Draw)
.gsm	Raw GSM 6.10 Audio Stream
        Sound file
        US Robotics modem file
.gsp	Geometer's Sketchpad Material file
.gsw    Worksheet (GraphShow)
.gtp	GuitarPro file
.gts	Genome Software Tempo Alarm Clock
.gup    Data (PopMail)
.gwi	Groupwise File
.gwp	Greetings WorkShop file
.gxd	General CADD Pro file
        GX-Reports file
        Jeol EX Spectrometer Data file
.gxl    Graphics library (Genus)
.gxt	GTA2 Game file
.gym	Sega Genesis Music Logged Format
.gz     Compressed file archive created by GZIP (GNU zip)
.h      Header file
.h!     On-line help file (Flambeaux Help! Display Engine)
.h++    Header file (C++)
.h--    Header file (Sphinx C--)
.ha     Compressed file archive created by HA (ha098.zip)
.ham	Image file
.hap    Compressed file archive created by HAP (hap303re.zip)
.hbk    Handbook (Mathcad)
.hcr	IBM HCD/HCM Production Configuration
.hdf    Hierarchical Data File graphics (SDSC Image Tools)
	Help file (Help Development Kit)
.hdl    Alternate download file listing (Procomm Plus)
.hdp	Magix Music/Video
.hdr    Pc-File+ Database header
	Datafile (Egret)
	Message header text (Procomm Plus - 1st Reader)
.hdw    Vector graphics (Harvard Draw)
.hdx    Help index (AutoCAD - Zortech C++)
.hex    Hex dump
.hfi    Hp Font Info file (GEM)
.hfx	HotFax file
        US Robotics Rapid Comm Voice Data file
.hgl    Hp Graphics Language graphics
.hh     C++ header file
.hhc	Table of Contents file
        TurboTax Contents file
.hhh    Precompiled header file (Power C)
.hhk	Help Workshop Index file
.hhp    Help information for remote users (Procomm Plus)
.hht	MS Messenger file
.hin    Molecule (HyperChem)
.his	Insight II Dynamics Trajectory History file
	Spy-CD CD Search Database file
.hlb    Help library (VAX)
.hlp    Help information
.hlz	Multi-Edit Packed Help file
.hmm    Alternate Mail Read option menu (Procomm Plus)
.hnc    CNC program files Heidenhain (?) dialog
.hof    Hall Of Fame (game scores)
.hp8    Ascii text HP Roman8 character set (NewWave Write)
.hpf    Hp LaserJet fonts (PageMaker)
.hpg    HPGL plotter file vector graphics (AutoCad - Harvard Graphics)
.hpi    Font information file (GEM)
.hpj    Help project (MS Help Compiler)
.hpk    Compressed file archive created by HPACK (hpack75.zip)
.hpm    Emm text (HP NewWave)
	Alternate Main menu for privileged users (Procomm Plus)
.hpp    C++ header file (Zortech C++)
.hqx    Compressed Macintosh ASCII archive created by BINHEX (xbin23.zip)
.hrf    Graphics (Hitachi Raster Format)
.hrm    Alternate Main menu for limited/normal users (Procomm Plus)
.hs2    Monochrome image (Postering)
.hsi    Handmade Software Inc. graphics - almost JPEG (Image Alchemy)
.hst    History file (Procomm Plus)
.hta	Hypertext application
.htc	HTML Component (mechanism for implementing Dynamic HTML in script)
.htf	WebBase File
.hti	WebBase File
.htm    HyperText Markup Language document
.htr	Motion Analysis Software Skeletal file
.htt	Hypertext template
.htx    Hypertext file
.hus	Husqvarna Designer I Embroidery Machine Format
.hwd    Presentation (Hollywood)
.hxm    Alternate Protocol Selection menu for all users (Procomm Plus)
.hxx    C++ header file
.hy1    Hyphenation algorithms (Ventura Publisher)
.hy2    Hyphenation algorithms (Ventura Publisher)
.hyc    Data (WordPerfect)
.hyd    Hyphenation dictionary (WordPerfect for Win)
.hyp    Compressed file archive created by HYPER (hyper25.zip)
.i      Intermediate file (Borland C++ 4.5)
.iaf	MS Outlook 97 and 2000 e-mail account settings
.iax    Bitmap graphics (IBM Image Access eXecutive)
.ibm    Compressed file archive created by ARCHDOS (Internal IBM only)
.ica    Bitmap graphics (Image Object Content Architecture)
.icb    Bitmap graphics
.icc	Kodak Printer Image
        IronCAD Catalog
.icd	IronCAD 2D CAD file
.icl    icon library (ActivIcons, IconForge, ImageForge, ImageForge PRO)
.icm	Image Color Matching Profile file
	ICC Profile, Acer Monotor Drive
.icn    Icon source code file
.ico    Icon (Windows 3.x)
.id     Disk identification file
.ide    Project (Borland C++ 4.5)
.idf	ARTiSAN Real-time Studio ID file
	MIDI Instruments Drivers file
.idl	MS Visual C++ Interface Definition file
        OMG CORBA Interface Definition Language
.idw    Vector graphics (IntelliDraw)
.idx    Index (many - FoxPro)
.ies	Photometric file data 
.ifd    Form (JetForm Design)
.iff    Interchange File Format bitmap graphics/sound (Amiga)
	Sun TAAC Image File Format (SDSC Image Tool)
.ifo    Saved graphic objects (ImageForge PRO)
.ifp    Script (KnowledgeMan)
.ifs    Fractal image compressed file (Yuvpak)
.ifs    System file (OS/2) hpfs.ifs
.igs	IGES-Format
.igx	iGrafx Process
.iif	QuickBooks for Windows Interchange file
.ilb    Data (Scream Tracker)
.ilk    Outline of program's format (MS ILink incremental linker)
.im8    Sun raster graphics
.ima    Mirage vector graphics (EGO, Chart, Autumn)
.imb	IncrediMail file
.imc	IncrediMail file
.imf    ImageForge/IconForge saved filtered brushes(IconForge, ImageForge, ImageForge PRO)
.img    Bitmap graphics (Ventura Publisher - GEM Paint)
.imm	IncrediMail Trash
.imn	IncrediMail Notifier
.imp    Spreadsheet (Lotus Improv)
.imq    Image presentation (ImageQ)
.ims	Incredimail Graphic
.imv	Yahoo Instant Messenger IMVironment
.imw	Imageware Surfacer 3D CAD Surface Geometry
        IncrediMail Sound
.imz	Compressed floppy image
.in$    Installation file (HP NewWave)
.in3    Input device driver (Harvard Graphics 3.0)
.inb    Test script (Vermont HighTest)
.inc    Include file (several programming languages)
.ind    Index (dBASE IV)
.inf    Type 1 LaserJet font information file (soft font installers)
	Information text file (ASCII)
	Install script
.ini    Initialization file
.ink    Pantone reference fills file (CorelDRAW)
.inl	MS Visual C++ Inline Function file
.inp	GIS Software Text Input file  
	Oracle Source Code
	Self-Extracting Archive Utility Project
.ins    Data (WordPerfect)
	Installation script (1st Reader)
	Instrument music file (Adlib)
.int    Borland Interface Units
	Program saved in Internal (semi-compiled) format (Signature)
.inx    Index (Foxbase)
.io     Compressed file archive created by CPIO
.iob    3d graphics database in TDDD format
.ioc    Organizational chart (Instant ORGcharting!)
.ion    4dos descript.ion file (file descriptions)
.ipd	InstallPROG 6 EDBS Install Database
.ipg	Mindjongg Format
.ipl    Pantone Spot reference palette file (CorelDRAW)
.ips	Game Patch file
	MENSI 3Dipsos
.ipx	IPIX AV file
.ipz	ICQ Skin Plus
.irs    Resource (WordPerfect)
.isd    Spelling Checker dictionary (RapidFile)
.ish    Compressed file archive created by ISH
.isk	Command file 
.iso	Easy CD Creator Disc Image
	File List for CD-ROM  
	InstallShield Uninstall file
	ISO Buster file
	ISO-9660 Table
	RichWin
.isr	MS Streets & Trips Route file
.iss	InstallShield Response file
	ISS Graphic  
.ist	Digitrakker Instrument File (n-FaCToR)
.isu	InstallShield Uninstall Script
        Easy CD Creator 4 Uninstall file
        Netscape file
.it     Settings (intalk)
.itf    Interface file (JPI TopSpeed Pascal)
.ith	InTether technology secured file
.ivt	MS Infoviewer Title
.iw     Presentation flowchart (IconAuthor - HSC InterActive)
.iwa    Text file (IBM Writing Assistant)
.iwp    Text file (Wang)
.izt    Izl binary token file (IZL)
.jar	Java archive file
.jas    Graphics
.jav    Java source code file
.jbc	Jam Byte-Code Hex file
	BestCrypt File
.jbd    Datafile (SigmaScan)
.jbf	Paint Shop Pro browser file
.jbk	Juno Backup file
.jbr	Jasc Paint Shop Pro Brush
.jbx    Project file (Project Scheduler 4)
.jdt	Accelio Capture Classic Filler
.jef	Janome NH10000 Sewing Machine file
.jet    Fax (Hybrid JetFax)
.jff    Bitmap graphics (JPEG File Interchange Format)
.jfx	J2 Fax File
.jhtml	Dynamo Server Page
.jif	JPEG/JIFF Image
        Jeff's Image Format  
.jmx	JMeter file
.jnb	Sigma Plot Workbook file
.jnl	Ingres Journal file
.job	Job file
        Task Scheduler Task Object
        AI Research file
        QuestVision Vector Graphics file
.jor    Journal file SQL
.jou    Journal backup (VAX Edt editor)
.jpc    Graphics (Japan PIC)
.jpe	JPEG image
.jpg    Bitmap graphics (Joint Photography Experts Group)
.jps	Stereo Image
.jsd	eFAX Jet Suite Document
.jsh	Henter-Joyce, Inc. Jaws Script Header file
.jsp	Java Server page
.jtf    Fax (Hayes JT Fax)
	Bitmap graphics (JPEG Tagged Interchange Format)
.jtp	Jetform file
.jw     Text document (JustWrite)
.jwl    Library (JustWrite)
.jwp	Easy CD Creator Label file
	JWP Document
.jzz    Spreatsheet (Jazz)
.kar    Midi file with karaoke word track
.kb     Keyboard script (Borland C++ 4.5)
	Program source (Knowledge Pro)
.kbd    Keyboard mapping (LocoScript - Signature - Procomm Plus)
.kbm    Keyboard mapping (Reflection 4.0)
.kcl    Lisp source code (Kyoto Common Lisp)
.kcp	Keychamp file
.kdc	Kodak Photo-Enhancer/Photogen file
.kex    Macro (KEDIT)
.key    Datafile (Forecast Pro)
	Keyboard macros
	Security file eg. Shareware Registration info
.kit	Raven Toolkit file
.kix	KixTart Script
.kma	Kodak Memory Book file
.kmp	Korg Trinity KeyMaP file
.kmx	Kaufman Mmail Warrior Mail Folder 
.kos	MicroType Pro Document
.kpl	Kazaa Playlist
	KPL Source Code
.kpp    Toolpad (SmartPad)
.kps    Ibm KIPS bitmap graphics
.kqp	Konica Quality Picture 
.krz	Kurzweil 2000 Sample
.ktk	Kutoka's Mia
.kyb    Keyboard mapping (FTP Software PC/TCP)
.l      Lex source code file
	Lisp source code file
	Linker directive file (WATCOM wlink)
.l01	ARC Digitized Raster Graphics
.lab    Datafile (NCSS - SOLO)
	Mailing labels (Q+E for MS Excel)
	Mailing labels (Q+E for MS Excel)
.lat	Crossword Express Lattice file
.lay    Word chart layout (APPLAUSE)
.lbg    Label generator data (dBASE IV)
.lbl    Label (dBASE IV - Clipper 5 - dBFast)
.lbm    Bitmap graphics (DeluxePaint)
	Linear bitmap graphics (XLib)
.lbo    Compiled label (dBASE IV)
.lbr    Compressed file archive created by LU (lue220.arc)
	Display driver (Lotus 1-2-3)
.lbt    Label memo (FoxPro)
.lbx    Label (FoxPro)
.lcf    Linker Control File (Norton Guides compiler)
.lck    Lockfile (Paradox)
.lcl    Data (FTP Software PC/TCP)
.lcn    Lection (WordPerfect)
.lcs    Datafile (ACT! History Files)
.lcw    Spreadsheet (Lucid 3-D)
.ld     Long Distance codes file (Telix)
.ld1    Overlay file (dBASE)
.ldb    Data (MS Access)
.ldf    Library definition file (Geoworks Glue)
.leg	Legacy Graphic Format
.les    Lesson (check *.cbt)
.let	Letter
.lev    Level file (NetHack 3.x)
.lex    Lexicon (dictionary) (many)
.lfa	LifeForm file
.lft    Laser printer font (ChiWriter)
.lg     Logo procedure definitions (LSRHS Logo)
.lgc	Program Use Log file 
.lgo    Logo for header and footer (SuperFax)
	Startup logo code (Windows 3.x)
.lha    Compressed file archive created by LHA/LHARC (lha255b.exe)
.lhw    Compressed Amiga file archive created by LHWARP
.lib    Library file (several programming languages)
.lic	License file (Shareware)
.lid	WinDVD file
	Light Field Description file
	Dylan Library Interchange Description
	LabelVision Auto Incrementing Value file
	Maple V Setup file
	Scholar's Aid Backup file
.lif    Logical Interchange Format data file (Hewlett-Packard)
	Compressed file archive
.lim    Compressed file archive created by LIMIT (limit12.zip)
.lin    Line types (AutoCAD)
.lis    Listing (VAX)
.lit	MS Reader EBook file
.lix	Extend Simulation Library file
	Libronix DLS Resource (LLS 2.x Index)
.lj     Text file for HP LJ II printer
.lko	MS Outlook Express Linked Object
.ll3    Laplink III related file (document) (LapLink III)
.lnd	3D Landscape Data
.lng	Diablo II file
        NRG SDR Language file
.lnk    Linker response file (.RTLink)
.loc	MicroSim PCBoard Component Locations Report
	Suppose Locations file
.lod    Load file
.log    Log file
.lok    Encrypted and compressed archive format (FileWrangler, SecurDesk!, ZipWrangler)
.lpc    Printer driver (TEKO)
.lpd	Helix Nuts and Bolts File
        Avery Label Pro
.lpf	Lytec's Direct Electronic Medical Claims ClaimsDirect
.lpi	Live Pictures
.lrf    Linker response file (MS C/C++)
.lrs    Language Resource File (WordPerfect for Win)
.lsf	Streaming Audio/Video file
        Libronix DLS Resource
.lsl    Lotus Script Library
.lsp    Lisp source code file (Xlisp)
.lss    Spreadsheet (Legato)
.lst    Keyboard macro (1st Reader)
	List file (archive index - compiler listfile)
	Spool file (Oracle)
.ltm    Form (Lotus Forms)
.ltr	Letter
.lvp	Lucent Voice Player
        LView Pro  
.lwa	LightWorks Archive Material/Scene file
.lwd    Text document (LotusWorks)
.lwo	NewTek Lightwave Object
.lwp    Lotus Wordpro 96/97 File
.lwz    MS Linguistically Enhanced Sound file
.lyr    DataCAD Layer file
.lzd    Difference file for binaries (Ldiff 1.20)
.lzh    Compressed file archive created by LHA/LHARC (lha255b.exe)
.lzs    Compressed file archive created by LARC (larc333.zip)
.lzw    Compressed Amiga file archive created by LHWARP
.lzx    Compressed file
.m      Function (program) (Matlab)
	Macro module (Brief)
	Standard package (Mathematica)
.m11    Text file (MASS11)
.m2p	MPEG-2 Program Stream Format file
.m2v	MPEG-2 Video Only file
.m3     Modula 3 source code file
.m3d    3d animation macro
.m3u	Music Playlist (Winamp)
.m4     M4 preprocessor file (unix)
.m_u    Backup of boot sector, FAT and boot dir (MazeGold)
.ma3    Macro (Harvard Graphics 3.0)
.mac    Bitmap graphics (Macintosh MacPaint)
	Macro
.mad	MS Access Module Shortcut
.mag    Woody Lynn's MAG graphics format (MPS Magro Paint System)
.mai    Mail (VAX)
.mak    Makefile
	Project file (Visual Basic)
.man    Command manual
.map    Color palette
	Format data (Micrografx Picture Publisher)
	Linker map file
	Map (Atlas MapMaker)
	Network map (AccView)
.mar    Assembly program (VAX Macro)
.mas    Smartmaster set (Freelance Graphics)
.mat    Data file (Matlab)
.max	Max source code file
	Microsoft Data Analyser View 
.mb     Memo field values for database (Paradox)
.mbf	MS Money Backup file
.mbk    Multiple index file backup (dBASE IV)
.mbx    Mailbox (Eudora/Zerberus)
.mcc    Configuration file (Mathcad)
.mcd    Document (Mathcad)
.mcf    Mathcad font
        Meta Content Format file
        Master Command file
        TMPGEnc template 
.mci    Mci command script (Media Control Interface)
.mcp    Application script (Capsule)
	Printer driver (Mathcad)
.mcr	DataCAD Keyboard macro file
.mcw    Text file (MacWrite II)
.mcx	Graphic file
.md     Compressed file archive created by MDCD (mdcd10.arc)
.md5	Message Digest 5 (Easy MD5 Creator)
.mda    Data (MS Access)
.mdb    Database (MS Access)
.mdf	Accelio Capture Classic (JetForm) Filler
	I-deas Master Drafting Machine Data file
	Menu Definition file
	MS-SQL Master Database file
.mdl    Model (3D Design Plus)
	Spreadsheet (CA-Compete!)
.mdm    Modem definition (TELIX)
.mdr	FaxTalk Modem Doctor Modem Report file
.mdt    Data table (MS ILink incremental linker)
.mdx    Multiple index file (dBASE IV)
.mdz	MS Access Wizard Template
.me     Usually ASCII text file READ.ME
.meb    Macro Editor bottom overflow file (WordPerfect Library)
.med    Macro Editor delete save (WordPerfect Library)
	Music (OctaMED)
.mem    Macro Editor macro (WordPerfect Library)
	Memory variable save file (Clipper - dBASE IV - FoxPro)
.meq    Macro Editor print queue file (WordPerfect Library)
.mer    Macro Editor resident area (WordPerfect Library) (vakioalue)
.mes    Macro Editor work space file (WordPerfect Library)
	Message
.met    Macro Editor top overflow file (WordPerfect Library)
	Document (Omnipage Pro)
.meu    Menu group (DOS Shell)
.mex    Mex file (executable command) (Matlab)
	Macro Editor expound file (WordPerfect Library)
	Mioplanet mex reader interactive file
.mf     Metafont text file
.mgf    Font (Micrografx)
.mhp	MS Home Publishing Project
.mht  	MS MHTML Document
.mib    Snmp MIB file
.mic	Microsoft Image Composer file
.mid    Standard MIDI file (music synthetizers)
.mif	Maker Interchange Format (FrameMaker)
.mii    Datafile (MicroStat-II)
.mim	MIME file
.mio	Multimedia Interactive Object
.mip	Paint Shop Pro Multiple Image Print file
.mis	Delta Force Land Warrior Mission
	MagicInstall Installation Script
	Tribes 2 Game file
.mix    Object file (Power C)
.mk     Makefile
.mke    Makefile (MS Windows SDK)
.mki    Japanese graphics MAKIchan format (MagView 0.5)
.mks    Data (TACT)
.ml3    Project (Milestones 3.x)
.mlb    Macro library file (Symphony)
.mlm	Novel Groupwise e-mail file
.mm     Text file (MultiMate Advantage II)
.mmc	Media Catalog  
        MSoffice Media Content 
.mmf    Mail message file (MS Mail)
.mml	Mail Meta Language
.mmm    Movie (RIFF RMMP format) (MacroMind Director 3.x)
.mmo    Memo writer file (RapidFile)
.mmp    Output video format from Bravado board
.mmx	Command & Conquer Red Alert 2 Map file
	Oracle Forms Compiled Menu
.mmz	MusicMatch Theme file
.mnd    Menu source (AutoCAD Menu Compiler)
.mng    Map (DeLorme Map'n'Go)
.mnt    Menu memo (FoxPro)
.mnu    Advanced macro (HP NewWave)
	Menu (AutoCAD Menu Compiler - Norton Commander - Signature)
.mnx    Compiled menu (AutoCAD)
	Menu (FoxPro)
.mny    Account book (MS Money)
.mob    Device definition (PEN Windows)
.mod    Modula-2 source code file (Clarion Modula-2)
	Windows kernel module
	Music (FastTracker - many)
.mol	MDL Molfile 
.mon    Monitor description (ReadMail)
.mov    QuickTime Video Clip
        Apple QuickTime Audio
        AutoCAD AutoFlix Movie
.mp2    Mpeg audio file (xing)
.mpc    Calender file (MS Project)
.mpd	MS Project database file
.mpe	MPEG Movie Clip
.mpf	MS Design Gallery
        MosASCII Project Workspace file
.mpg    Mpeg animation
.mpm    Mathplan macro (WordPerfect Library)
.mpp    Project file (MS Project)
        CAD Drawing File
.mpq	Blizzard Game Data file
.mpr    Generated program (FoxPro)
.mps	Multimedia file
        Casio PDL Pocket Streets Map
.mpt    Bitmap graphics (Multipage TIFF)
	Template File (MS Project)
.mpv    View file (MS Project)
.mpw	MosASCII Project Workspace file
.mpx    Compiled menu program (FoxPro)
.mrb    Multiple Resolution Bitmap graphics (MS C/C++)
.mrc	MIRC Script file
        Bibliographic Data Format
.mrk	Informative Graphics markup file
.mrs    Macro Resource file (WordPerfect for Win)
.msc    MS C makefile
.msf	Multiple Sequence file
.msg    Message
.msi	Windows Installer file
.mso	Math Script Object file
	MS FrontPage file
	MS Word OLE Web Page Storage Stream 
.msp    Bitmap graphics (Microsoft Paint)
.mss    Manuscript text file (Perfect Writer - Scribble - MINCE - Jove)
.mst    ChemFinder Chemical Structure Index
	DATAIR Pension System Master file
	Minispecification file (Prosa)
	Setup script (MS Windows SDK)
	Visual Test Source file
.msv	Sony Memory Stick Format
.msw    Text file (MS Word)
.msx    Compressed CP/M file archive created by MSX
.mtd	Digital Sheet Music
.mth    Math file (Derive)
.mtm    Multitracker Module music
.mts	Viewpoint iPix file
.mtw    Datafile (Minitab)
.mtx	Temporary File often used by a browser or TWAIN device
	Viewpoint iPix file
.mu     Menu (Quattro Pro)
.mu3	Myriad Music file (packed sounds & digital tracks)
.muf	ProtoMuck Multi User Forth Program
.mul	Ultima Online Game
.mus    MusicTime Sound file
	Myriad Music file 
.mvb	Database
        MS Multimedia viewer file  
.mvc	Music Collector Collection Manager file
.mvf    Stop frame file (AutoCAD AutoFlix)
.mvi    Movie command file (AutoCAD AutoFlix)
.mvw    Log file (Saber LAN)
.mwf    Animation (ProMotion)
.mwv	MovieWorks file
.mxd	GIS Project file 
.mxe	Macro Express
        Mindex Effect Album
.mxm	MS Project/Outlook Team Assign Task
.mxp	Macromedia Extension Manager
        ArcReader Published Map
.mxt    Data (MS C)
.myp    Presentation (MM Make Your Point)
.myr	Myriad Music file
.mys	Myst Saved Game
.myt	Myriad Tutorial file
.na2	Netscape Mail file
.nam	MS Office Name file 
.nap    Naplps file (VideoShow) (EnerGraphics)
.nav	MSN Application Extension
.nb     Text file (Nota Bene)
.nc     Graphics (netcdf)
	Instructions for NC (Numerical Control) machine (CAMS)
.ncb	MS Developer Studio file
.ncc    Cnc (Computer Numeric Control) control file (CamView 3D)
.ncd	CoverDesigner  
	Norton Change Directory support file (Norton Commander)
	NTI CD-Maker file    
.ncf	Lotus Notes Internal Clipboard
	Netware Command file
.nch	Outlook Express folder file
        On Hold message/music file
.ndb    Network database (Intellicom - Compex)
.ndx    Index file (dBASE II - III - IV - dBFast)
.neb	Nortec H.E.L.P.
.ned	MSN Application Extension
.neo    Raster graphics (Atari Neochrome)
.nes	Nintendo Entertainment System ROM Image
.net    Network configuration/info file
.new    New info
.nfo    Info file
.ng     Online documentation database (Norton Guide)
.ngf	Enterasys Networks NetSight generated format file
.ngg	Nokia Group Graphics
.nif	NetImmerse File Format
.nlm    Netware Loadable Module
.nls	Code Page National Language Support
.nlx    Form (FormWorx 3.0)
.nmd	SwordSearcher file
.nmi	SwordSearcher file
.nmo	Virtools Behavioral Objects
.nms	Numega Softice's Loader file
	Virtools Graphical Scripts
.nnb	newnovelist Story Outline
.nob	VersaPro Word Exchange file
.nol	Nokia Operator Logo
.not	Acrobat Spelling file
	ActiveNote Post-It-Notes
.now	Text file 
.np     Project schedule (Nokia Planner) (Visual Planner 3.x)
.npa	ReliaSoft Weibull++ 6 
.npi    Source for DGEN.EXE intepreter (dBASE Application Generator)
.nra	Nero Audio-CD Compilation
.nrb	Nero CD-ROM Boot Compilation
.nrg	Norton Registration Entries
        Nero CD-Image
        IsoBuster file
.nri	Nero ISO CD-ROM compilation
.nrl	iManage file
.nsc	Noder file (Polish)
        Windows Media Station file 
.nsf    Lotus Notes / Domino database
.nsi	Nullsoft Install System Script
.nst    Music (NoiseTracker)
.nt     Startup files (Windows NT)
.ntf    Lotus Notes / Domino template file
.ntp	Neato CD Labels
.ntr    Executable ASCII text file (strip header and rename) (netrun31.zip)
.nts    Tutorial (Norton)
	Executable ASCII text file (strip header and rename) (netsend1.zip)
.ntx    Index (Clipper 5)
.ntz	InVircible Directory Integrity Information
.nuf    Message for new users on their 1st call (Procomm Plus)
.nwc	Noteworthy Composer song file
.nws    Info text file (latest news) (ASCII)
.nxt    Sound (NeXT format)
.o      Object file (unix - Atari - GCC)
.o$$    Outfile (Sprint)
.oaz    Fax (NetFax Manager)
.ob     Object cut/paste file (IBM LinkWay)
.obd	MS Office Binder
.obj    Object code (Intel Recolatable Object Module)
.obr    Object browser data file (Borland C++)
.obs    Script (ObjectScript)
.obv    Visual interface (ObjectScript)
.oca	Control Typelib Cache
.ocf    Object Craft File (Object Craft)
.ocm	AOL Advertising Control files
        Internet Odyssey 2 Update
.ocp	Advanced Art Studio
	Offline Commander Project file
.ocr    Incoming fax transcribed to text (FAXGrapper)
.oct	Radiance Octree Format
.ocx    OLE custom control
.odf	Open Document Interchange
	BattleZone Cartographers Guild file
	Star Trek Armada Ship/Structure Infomation
.odl    Type library source (Visual C++)
.oeb	Outlook Express Backup Wizard
.ofc	Open Financial Connectivity file
.ofd    Form definition (ObjectView)
.off    Object File Format vector graphics
.ofm	Adobe font
.oft	MS Outlook Item Template
.ofx	Olicom Fax 
	Open Financial Exchange file
.ogg	Ogg Vorbis Codec Compressed WAV file
.ogm	Ogg Vorbis Compressed Video file
.okt    Music (Oktalizer)
.olb    Object library (VAX)
.old    Backup file
.oli    Text file (Olivetti)
.omg	OpenMG Jukebox
.oms	Briggs Softworks Order Maven
	Macintosh MP3 Music Format
	Omega Downloader Configuration file 
.ond	Lotus Notes-related file
.oom    Swap file (Shroom)
.opd	Omnipage file
.opf	Flip Album file
.opl	Psion Organiser Programming Language Source file
.opn    Active options (Exact)
.opt    Optimize support file (QEMM)
.opw    Organization chart (Org Plus for Windows)
.opx    Inactive options (Exact)
.or2	Lotus Organizer 2 file
.or3	Lotus Organizer 97 file
.or4	Lotus Organizer file
.or5	Lotus Organizer file
.ora    Parameter file (Oracle)
.org    Calendar file (Lotus Organizer)
.osd	Open Software Description file
.oss	MS Office Saved Search
.ost	Microsoft Outlook Offline file
.otf	Open Type Format
.otl    Outline font description (Z-Soft Type Foundry)
.otx    Text file (Olivetti Olitext Plus)
.out    Output file
.ov1    Overlay file (part of program to be loaded when needed)
.ov2    Overlay file (part of program to be loaded when needed)
.ovd    Datafile (ObjectVision)
.ovl    Overlay file (part of program to be loaded when needed)
.ovr    Overlay file (part of program to be loaded when needed)
.ovw	Cool Edit Pro Overviewfile
	Cubase .WAV File Image
	DIANA Overview file
.ows	Web Studio 2 Project file
.p      Pascal source code file
	Rea-C-Time application parameter file (ReaGeniX code generator)
	Picture file (APPLAUSE)
.p16    Music (16 channels) (ProTracker Studio 16)
.p22    Patch file (Patch22)
.p65    Adobe Pagemaker v6.5
.p7m	PKCS #7 MIME Message
.pa	Print Artist
.pa1    Worktable (PageAhead)
.pab	Microsoft Outlook personal address book
.pac    Stad Image (graphics ?)
	Package (SBStudio II)
.pad    Keypad definition (Telemate)
.paf	PARIS audio format
        Personal Ancestral file
.pak    Compressed file archive created by PAK (pak251.exe)
.pal	Adobe Pagemaker Library Palette
	Color Palette
	Compressed File  
	Tree Professional Palm Creator file
.pan    Printer-specific file (copy to coreldrw.ink) (CorelDRAW)
.par    Parts application (Digitalk PARTS)
	Parameter file (Fractint)
	Permanent output file (Windows 3.x)
.pas    Pascal source code file
.pat    Hatch patterns (AutoCAD - Photostyler)
.pat    Vector fill files (CorelDRAW)
.pb     Fax (FAXability Plus)
	Phonebook (WinFax Pro)
	Setup file (PixBase)
.pb1    Document (First Publisher for Windows)
.pba    Powerbasic BASIC source code (Genus)
.pbd    Phone book (FaxNOW! - Faxit)
.pbf	Turtle Beach Pinnacle Bank file
        Grand Prix Legends BMAP file
        PBook E-book Format (renamed ZIP file)
        Portable Bitmap Format file
.pbi    Powerbasic include file (Genus)
	Profiler Binary Input (MS Source Profiler)
.pbl    Powerbasic library (Genus)
.pbm    Pbm Portable Bit Map graphics
	Planar bitmap graphics (XLib)
.pbo    Profiler Binary Output (MS Source Profiler)
.pbt    Profiler Binary Table (MS Source Profiler)
.pc     Text file containing IBM PC specific info
.pc3    Custom palette (Harvard Graphics 3.0)
.pc8    Ascii text IBM8 character set (NewWave Write)
.pcb	Broderbund Print Shop Business Card
	Ivex Winboard Design file
	MS PowerPoint Application Data file
	Protel Technology Advanced PCB Design
.pcc    Cutout picture vector graphics (PC Paintbrush)
.pcd    Graphics (Kodak PhotoCD)
.pcf    Profiler Command File (MS Source Profiler)
.pch    Patch file
	Precompiled header (MS C/C++)
.pcj    Multimedia authoring tool graphics (IBM's Linkaway-Live)
.pck    Pickfile (Turbo Pascal)
.pcl    HP-PCL graphics data (HP Printer Control Language)
.pcm	Plasmacam CAD/CAM system file
.pcs	PICS Animation
.pct	Bitmap Graphic 
	Honeywell GUS Display Builder 
	Macintosh Quickdraw/PICT Drawing  
	NIST IHDR  
.pcw    Text file (PC Write)
.pcx    Bitmap graphics (PC Paintbrush)
.pda    Bitmap graphics
.pdb    Data (TACT)
.pdd    Adobe PhotoDeluxe Image
.pdf	Adobe Portable Document Format
	Package Definition File
	Graphics file (ED-SCAN 24bit format)
.pdg	Printshop Deluxe files
.pdl    Project Description Language file (Borland C++ 4.5)
.pdr	Port or printer driver
.pds    Incredimail
        Source Code File
        Telsis HiCall Program File
	Pds graphics        
	Planetary Data System 
	Pldasm source code file (hardware assembly) 
	Print Shop Graphic
.pdt	ProCite Primary Database
        VersaPro Compiled Block
.pdv    Printer driver (Paintbrush)
.pdw    Document (Professional Draw)
.pe4	Photo Explorer Thumbnail
.peb    Program Editor bottom overflow file (WordPerfect Library)
.ped    Program Editor delete save (WordPerfect Library)
.pem    Program Editor macro (WordPerfect Library)
.peq    Program Editor print queue file (WordPerfect Library)
.per    Program Editor resident area (WordPerfect Library) (vakioalue)
.pes    Program Editor work space file (WordPerfect Library)
.pet    Program Editor top overflow file (WordPerfect Library)
.pf	Monitor/printer profile file
.pfa    Type 3 font file (unhinted PostScript font)
.pfb    Type 1 font file
.pfc    Text file (First Choice)
.pfg	jEEPers file
.pfk    Programmable function keys (XTreePro)
.pfm    Windows Type 1 font metric file
.pfs    Database (PFS:FILE) - text file (PFS:Write)
.pft    Printer font (ChiWriter)
.pg     Page cut/paste file (IBM LinkWay)
.pgi    Printer Graphics File device driver (PGRAPH library)
.pgm    Portable Grayscale bitMap graphics
	Program (Signature)
.pgp    Support file (Pretty Good Privacy RSA System)
.pgs    Manual page (man4dos)
.ph     Optimized .goh file (Geoworks)
	Perl header file
	Phrase-table (MS C/C++)
.phb	NewLeaf PhraseBook
        ClustaW Tree file
        TreeView file 
        PhoneB Phonebook file
.phn    Phone list (UltraFax - QmodemPro)
.pho    Phone database (Metz Phone for Windows)
.php	MS Picture It! Publishing Project File
	PhotoParade
	PHP Script
.phr    Phrases (LocoScript)
.pic    Pixar picture file (SDSC Image Tool)
	Bitmap graphics (Macintosh b&w PICT1 - color PICT2)
	Bitmap graphics (many eg. Lotus 1-2-3 - PC Paint)
.pif    Program Information File (Windows 3.x)
	Vector graphics GDF format (IBM mainframe computers)
.pip	Personalized menu and toolbar (MS Office)
.pit    Compressed Mac file archive created by PACKIT (unpackit.zoo)
.pix    Alias image file (SDSC Image Tool)
.pj     Project (CA-SuperProject)
.pjt    Project memo (FoxPro)
.pjx    Project (FoxPro)
.pk     Packed bitmap font bitmap file (TeX DVI drivers)
.pk3	American McGee Alice Archive
        Return to Castle Wolfenstein file
        Heavy Metal: F.A.K.K.2 Archive
        Quake 3 Arena Archive (renamed zip file)
.pka    Compressed file archive created by PKARC
.pkd	Top Secret Crypto Gold file
.pkg    Installer script (Next)
.pkt    Fidonet packet
.pl     Perl source code file
	Prolog source code file
	Property List font metric file (TeX)
	Palette (Harvard Graphics)
.pl1    Room plan (3D Home Architect)
.pl3    Chart palette (Harvard Graphics 3.0)
.plb    Library (FoxPro)
.plc    Add-in file (functions - macros - applications) (Lotus 1-2-3)
.pll    Pre-linked library (Clipper 5)
.pln    Spreadsheet (WordPerfect for Win)
.plr	Descent Pilot file
	Player file 
.pls	DisorderTracker2 Sample
        WinAmp MPEG PlayList file
        Shoutcast file
        MYOB Data file
.plt    AutoCAD HPGL Vector Graphic Plotter file
	Bentley's CAD MicroStation Driver Configuration for Plotting
	Clipper 5 Pre-linked Transfer file
	Gerber Sign-making Software file
	HP Graphics Language
	Infinity Game Engine Bitmap Graphic
	Lotus Organiser Paper Layout Definition
	Palette
	X-wing vs. Tie Fighter Pilot file
.ply    Data (PopMail)
	Presentation screen (Harvard Spotlight)
.pm     Bitmap graphics (Presentation Manager)
.pm3    Document (PageMaker 3)
.pm4    Document (PageMaker 4)
.pm5    Document (PageMaker 5)
.pm6	Document (Pagemaker 6)
.pmc    Graphics (A4TECH Scanner)
.pmd	Pagemaker file
.pme	Plazmic Media Engine file
.pmf	ArcReader GIS Mapping file
.pmm    Program file (Amaris BTX/2)
.pmo	Print Master Gold Text
.pmx	Pegasus Mail file
.pn3    Printer device driver (Harvard Graphics 3.0)
.pnf	Precompiled Setup Information (Temporary file seen during installs)
.png    Bitmap graphics (Portable Network Graphics)
.pnm    Pbm Portable aNy Map (PNM) graphics
.pnt    Macintosh painting
	Qwk reader pointer file (MarkMail 2.x)
.poh    Optimized .goh file (Geoworks)
.pop    Messages index (PopMail)
	Pop-up menu object (dBASE Application Generator)
.pos	ProCite Output Styles
        QuickPOS IIF file
.pot	PowerPoint template
.pov    Raytraced scene description file (Persistence Of Vision)
.pow    Chord chart (PowerChords)
.pp     Compressed Amiga file archive created by POWERPACKER
.ppa	PowerPoint Add-in 
.ppb    Button bar for Print Preview (WordPerfect for Win)
.ppd	PostScript Printer Description (Acrobat)
.ppf	Turtle Beach Pinnacle Program file
        Jasc Paint Shop Pro 7 Preset file
        Micrografx Picture Publisher file
        PlayStation Patch file
.ppg	MS PowerPoint Ppresentation
	Professor Franklin's Photo Print Gold
.ppl    Polaroidpaletteplus ColorKey device driver (Harvard Graphics 3.0)
.ppm    Portable Pixel Map graphics
.ppo    Pre-processor output (Clipper 5)
.ppp    Publication (PagePlus)
.pps    PowerPoint Slideshow
	Storyboard (Personal Producer)
.ppt    General file extension (PowerPoint)
.ppz	PowerPoint Packaged Presentation
.pqa	Palm Query Application File (database for wireless access)
.pqi	Power Quest Drive imaging
.pr2    Presentation (Aldus Persuasion 2.x)
.pr2    Printer driver (dBASE IV)
.pr3    Postscript printer driver (dBASE IV)
.pr3    Presentation (Aldus Persuasion 3.x)
.prc	Palmpilot resource file
	Picture Gear Pocket  
.prd    Printer driver (many)
.pre    Presentation (Freelance Graphics)
	Settings (Programmer's WorkBench - MS C/C++)
.prf    Pixel Run Format graphics (Improces - Fastgraph)
	Printer driver (dBASE IV)
	Profiler output
.prg    Program (Atari)
	Program source (dBASE IV - FoxPro - Clipper 5 - dBFast)
.pri    Printer definitions (LocoScript)
.prj    Project
.prm    Parameters
.prn	DataCAD Windows Printer file
	HP Printer Control Language
	PostScript file
	Printer Text file
	XYWrite Printer Driver
.pro    Prolog source code file
	Graphics profile file (DOS)
.prs    Printer Resource eg. fonts (WordPerfect for Win)
	Presentation (Harvard Graphics Win)
	Procedure (dBASE IV)
.prt	CADKEY Part file
	Printer  Configuration 
	Printer driver (Dr.Halo)
	Printer-formatted file
	Pro/ENGINEER Model file
	Process Revolution Template file
	SCEdit Part file 
	Unigraphics Part file
.prx    Compiled program (FoxPro)
.prz	Freelance Graphics 97 file
.ps     Postscript file (text/graphics) (ASCII)
.psb	Pinnacle Sound Bank
        Project Scheduler Configuration file
.psd    Graphics (Photoshop 3.0)
.pse    Bitmap graphics (IBM printer Page SEgment)
.psf    Outline PostScript printer font (ChiWriter)
	PrintShop Mail Favorites
.psi	PSION A-law Audio
.psm    Music (MASI - ProTracker)
	PrintShop Mail
	Symbol table of IDE (Turbo Pascal)
.psmdoc	PrintShop Mail
.psp    PaintShop Pro Image
	Procedure (Prodea Synergy)
        Project Scheduler Planning file
.psr	Project Scheduler Resource file
.pst	MS Outlook personal folder
.psw	WinXP Backup Password File
.pt3    Device driver (Harvard Graphics 3.0)
	Template (PageMaker 3)
.pt4    Template (PageMaker 4)
.ptb    Script (PubTech BatchWorks)
.ptm    Macro (PubTech BatchWorks)
.ptn	PaperPort Thumbnail Images
.ptp	Act! Modem Sync file
.ptr    Qwk reader pointer file (QMail)
.pts	Infinity Engine Game Tileset
        Halflife Map Creation Debug file
.ptx	Real Legal E-Transcript 
.pub    Page template (MS Publisher)
	Public key ring file (Pretty Good Privacy RSA System)
	Publication (Ventura Publisher - 1st Publisher)
.put    Compressed file archive created by PUT (put334.zip)
.puz	Across Lite Crossword Puzzle
	Packed MS Publisher file
.pva	Hauppauge DVB-Software
.pvd    Script (Instalit)
.pvl    Library (Instalit)
.pvt    Local Fidonet pointlist
.pw     Text file (Professional Write)
.pwd	Pocket Word document
	AutoCAD Password file 
.pwl    Password List
.pwp    Text document (Professional WritePlus)
.pwz	MS Powerpoint Wizard
.px     Primary database index (Paradox)
.pxl	Pocket Excel Spreadsheet
.py     Python script file
.pyc    Compiled PYTHON script file
.pyd	Binary Python Extension on Windows
.pyw	Python GUI Script on Windows
.pz2	Curious Labs Poser Pose file
.pz3	Curious Labs Poser Document
.pza	MGI PhotoSuite II/III/4 Album file
.pzd    Default settings (Pizazz Plus)
.pzl	Jigs@w Puzzle
	Lode Runner Game Puzzle
	Puzzle
.pzo    Overlay file (Pizazz Plus)
.pzp	MGI PhotoSuite II/III/4 Project file
	Palette (Pizazz Plus)
.pzs    Settings (Pizazz Plus)
.pzt    Transfer file (Pizazz Plus)
.pzx    Swap file (Pizazz Plus)
.q9q	BladePro Graphic Plugin file
.qad	QuickArt database
.qag    Quick Access Group (Norton Desktop)
.qap    Application (Omnis Quartz)
.qbb	QuickBooks for Windows Backup file
.qbe    Saved query (Query By Example) (dBASE IV - Quattro Pro)
.qbl	Business Lawyer Document
.qbo    Compiled query (dBASE IV)
.qbr	QuickBooks Report
.qbw    Spreadsheet (QuickBooks for Windows)
.qcn	Qualcomm Phonebook file
.qcp	Qualcomm PureVoice File
.qd0    Data file - segment 10 (Omnis Quartz)
.qd1    Data file - segment 1 (Omnis Quartz)
.qd2    Data file - segment 2 (Omnis Quartz)
.qd3    Data file - segment 3 (Omnis Quartz)
.qd4    Data file - segment 4 (Omnis Quartz)
.qd5    Data file - segment 5 (Omnis Quartz)
.qd6    Data file - segment 6 (Omnis Quartz)
.qd7    Data file - segment 7 (Omnis Quartz)
.qd8    Data file - segment 8 (Omnis Quartz)
.qd9    Data file - segment 9 (Omnis Quartz)
.qdat	Quicktime Installer Cache
.qdb	Quicken data file
.qdf	Quicken for Windows data file
.qdk    Backup of startup files created by Optimize (QEMM)
.qdt	Quark Xpress Dictionary file
	Question Mark Designer Test file
	QuickBooks UK Accountancy Data file
	Quicken Data file
.qdv    Graphics (Steve Blackstock Giffer)
.qe4	Kingpin Project file
.qef    Query file (Q+E for MS Excel)
.qel	Quicken Electronic Library file
.qfl	Quicken Family Lawyer file
.qfx    Fax (QuickLink)
.qic	Backup set for Microsoft Backup
.qif	Quicken Interchange Format
	Quicktime Image
.qix	NovaStar Backup file 
	Quicken for DOS v.2 data file
.qlb    Quick library (MS C/C++)
.qlc    Data (PostScript help file) atmfonts.qlc
.qlf	Family Tree Maker Genealogy file
.qlp    Printer driver (QuickLink)
.qm4    Options or services file (QMail 4.x Mail Door)
.qpr    Generated query program (FoxPro)
	Print queue device driver (OS/2)
.qpw	Quattro Pro Project file
.qpx    Compiled query program (FoxPro)
.qrp	Centura Report Builder file
        Liberty for Windows report file
.qrs    Equation Editor support file (WordPerfect for Win)
.qrt    Qrt ray tracing graphics
.qry    Query (dBASE IV)
.qsd	Quicken for Windows data file
.qst	Quake Spy Tab file
.qt     Quicktime movie (animation)
.qtc	Incite Media Assistant file
.qtk	Apple QuickTake file format for Windows
.qtp	QuickTime Preferences
        Astra Quicktest Report
.qts	Macintosh PICT image
        QuickTime image 
.qtx	QuickTime image
.que	CuteFTP Queue file
	Task Scheduler Queue Object
.qvm	Quake file 
.qvs	Casio Digital Camera file
.qwk    Qwk reader message file
.qxd    Document (QuarkXPress)
.qxl    Element library (QuarkXPress)
.qxt	Template file (QuarkXpress)
.r      Ratfor (FORTRAN preprosessor) file
.r33	Train Simulator Game file
.r8     Raw graphics (one byte per pixel) plane one (PicLab)
.r8p    Pcl 4 bitmap font file (Intellifont)
.ra     Music (RealAudio)
.ram    Ramfile (RealAudio)
.rar    Compressed file archive created by RAR (rar1_402.exe)
.ras    Sun Rasterfile graphics
.rat    Datafile (RATS)
.raw    Raw RGB 24-bit graphics
.rbf    Datafile (Rbase)
.rbn	Richard's Bridge Notation
        Real Sound file
.rc     Resource script (MS C/C++ - Borland C++)
	Configuration (emacs)
.rcg    Netscape newsgroup file (netsc.rcg)
.rcp	Recomposer's MIDI Sequencer Music file
.rcx	Lego Mindstorms Robotics Invention System
.rdb	TrueVector Rules database
        ZoneAlarm Rules database
.rdf    Compiled UIC source code (Geoworks UI Compiler)
.rdi    Device-independent bitmap file (RIFF RDIB format)
.rds	Ray Dream Studio file
.rdx    Datafile (Reflex)
.rec    Datafile (EpiInfo)
	Record file (Sprint)
	Recorded macro file (Windows 3.x)
.red    Path info (Clarion Modula-2)
.ref    Cross-reference
.reg    Ole Registration (Windows 3.x)
	Registration (Corel programs)
.rem    Remarks
.rep    Qwk reader reply file
	Report (Report Designer - CodeReporter - DataBoss)
.req    Request
.res    Compiled resource (MS C/C++ - Borland C++)
	Dbase resources (dBASE IV)
.rev    Revision file (Geoworks)
.rex    Rexx source code file
	Report definition (Oracle)
.rez    Resource file
.rf     Sun raster graphics
.rft    Dca/RFT Revisable Format Text file (IBM DisplayWrite 4.0-5.1)
.rgb    Sgi RGB image file (SDSC Image Tool)
.rgi	RealArcade Game Installer
.rgp	RealArcade Game Package
.rgs	RealArcade Game Installer
.rgx    Symbol tables etc. info (ReaGeniX code generator)
.rh     Resource header file (Borland C++ 4.5)
.ri     Data (Lotus 1-2-3)
.rib    Graphics in Renderman format (3DReality)
.ric    Fax (Ricoh)
.rif    Riff bitmap graphics (Fractal Design Painter)
.rip    Graphics (Remote Access)
.rix    Bitmap graphics (ColorRIX VGA Paint)
.rl4    Bitmap graphics
.rl8    Bitmap graphics
.rla    Wavefront raster image file (SDSC Image Tool)
.rlb    Data (Harvard Graphics Win) hgw.rlb
.rlc    Graphics 1bit/pixel scanner output
.rle    Utah Run Length Encoded raster graphic (SDSC Image Tool)
.rlz    Realizer source code file (CA-Realizer)
.rmf	Rich Map Format
.rmi    Midi file (RIFF RMID format)
.rmj	Real Jukebox file
.rmk    Makefile (Clipper RMake)
.rmm	RealPlayer file
.rmr	Resume Maker file
.rmx	RealJukeBox MP3 file
.rn     Xpl program for Nota Bene users
.rnd    Rendering Slide (AutoCAD AutoShade)
.rno    Runoff file (VAX)
.rol    Fm music Adlib Music File (Roland)
.rpd	Database (RapidFile)
	RosaPro file
	RPV Printing System file
.rpl    Text document (Replica)
.rpm	RedHat Package Manager
        RealMedia Player file
        RunPaint Multicolor Graphic
.rps	Propellerhead Software Reason Song  
.rpt    Report
.rrd	ERDAS Imagine file
.rs     Data file (Amiga Resource - Reassembler)
.rs_    Resource fork of a Macintosh file (Mac-ette)
.rsb	Red Storm Image Format
.rsc    Resource file
.rsm	ReliaSoft MPC 3
	RuneSword II Game
	WinWay Deluxe Resume file
.rsp    Response file
.rss	ReliaSoft BlockSim
	Rockwell Logix PLC file
.rst	ANSYS Results
	ReliaSoft BlockSim
.rsw	ReliaSoft BlockSim
.rtf    Rich Text Format text file (many - Windows Word)
	Windows Help file script
.rtl    Run Time Library (NU 7.0)
	Text file
.rtp    Rtpatch software update package data file
.rts    Runtime library file (CA-Realizer)
.rtx	Reliacast Audience Manager Turnstile
        Mobile Phone Ringtone
.rul	InstallShield
.rvp	MS Scan Configuration file
.rvw    Review
.rws    Resource Workshop data file (Borland C++)
.rwx    Script (RenderWare)
.rwz	MS Outlook Rules Wizard file
.rzr	in-sync Speed Razor Project file
.rzx	in-sync Speed Razor Project file
.s      Assembly source code file (unix)
	Scheme source code file
.s$$    Temporary sort file (Sprint)
.s3m    Music (16 channels) (Scream Tracker 3.0)
.sac	Shared Asset Catalog (Adobe)
.saf	MusicMatch Jukebox Secure Audio file
	Safe File Encryption (Helix Software)
	Twelve Ghosts file
.sah	SETI@Home data file
.sal    Datafile (SORITEC)
.sam    Text file (Samna - Lotus Ami/Ami Pro)
.sar    Compressed file archive created by SAR (sar1.zip)
.sav    Backup file (saved file)
	Configuration
	Saved game situation (eg. NetHack)
.sb     Audio file (signed byte)
.sbc	Sagebrush Corporation Spectrum CIRC/CAT Report
.sbd    Storyboard (Storyboard Editor)
.sbi    Sound Blaster Instrument file (Creative Labs)
.sbp    Dml program (Superbase 4)
.sbr    Support file (Source Browser)
.sbs	SWAT HRU Output file
.sbt    Notes related to record (Suberbase 4 Windows)
.sc     Pal script (Paradox)
	Display driver (Framework II)
.sc3    Renamed dBASE III screen mask file (dBASE IV)
	Screen device driver (Harvard Graphics 3.0)
.sca    Datafile (SCA)
.scc    Text file
.scd    Scodl Scan Conversion Object Description Language graphics
.scf    Multimedia show (ScoreMaker)
	Spelling checker configuration (Symphony)
.sch    Project schedule (Schedule Publisher)
	Schematics file (ORCAD)
.sci    System Configuration Information
	Fax (SciFax)
.scm    Scheme source code file
.scn    Screen file (Kermit)
.sco    High score
.scp    Script (BITCOM)
.scr    Debug source code file (DOS Debug)
	Screen - screen snapshot (dBASE IV - Procomm Plus)
	Screen font (LocoScript)
	Screen saver (Windows 3.x)
	Script (Kermit - 1st Reader)
.sct    Screen memo (FoxPro)
.scx    Bitmap graphics (ColorRIX)
	Chart (Stanford Chart)
	Screen (FoxPro)
.scy    Security file (ReaGeniX)
.sda    Fidonet's Software Distribution Network file archive description
.sdc	StarOffice Spreadsheet
.sdd	StarOffice Presentation
.sdf    System Data Format file (fixed lenght ASCII text)
.sdi    Software Distribution Network Info file
.sdn    Software Distribution Network compressd file archive (pak251.exe)
.sdr	SmartDraw file
.sdt	SmartDraw Template
        Dungeon Keeper 2 Archive
        Theme Park World Archive
.sdu	Edwards Systems Technology file 
.sdw	StarOffice Text
        Raw Signed DWord Data
        Lotus WordPro Graphic
.sea    Self-Extracting compressed Macintosh file Archive
.sec    Secret key ring file (Pretty Good Privacy RSA System)
	Secured animation file (Disney Animation Studio)
.sep    Printer separator page
.seq    Atari animation file
	Sequential Instruction File (Bubble Chamber)
.ses    Session info (Clarion Modula-2)
.set    Configuration (1st Reader)
	Driver sets created by Install (Symphony)
	Setup options file
.sf     Ircam Sound File (CSound package - MixView sound sample editor)
	Wps attribute storage (OS/2 WorkPlace Shell) wp_root.sf
.sff	Fritz Fax-Print file
	Stage Scene file
	Structured Fax Format
.sfi    Graphics (SIS Framegrabber)
	Printer font (HP LaserJet landscape) (Ventura Publisher)
.sfl    Pcl 4 bitmap font (landscape) (Intellifont) (Ventura Publisher)
.sfn    Font (SPX)
.sfp    Pcl 4 bitmap font (portrait) (Intellifont) (Ventura Publisher)
.sfs    Pcl 5 scalable font file (Intellifont)
.sft    Screen font (ChiWriter)
.sfv	QuickSFV/WinSFV Checksum file
	Simple File Verification (Easy SFV Creator)
.sfw	Seattle Film Works file
.sg1    Graphics (Stanford Graphics)
.sgf	Document with graphics (Starwriter)
	Smart Game Format
	Sonique Skin
.sgi    Graphics (IRIS - Silicon Graphics)
.sgn	Sierra Print Artist Sign
.sgp    Statistics (STATGRAPHICS Plus)
.sgt    Save/get keyboard macro (Signature)
.sh     Unix shell script
	Unix ASCII file archive created by SHAR (unshar.zip)
.sh3    Presentation (Harvard Graphics 3.0)
.shb    Background (CorelShow)
.shd	Print Spooler Shadow file
.shg    Segmented-graphics bitmap
.shk    Compressed Apple II file archive created by SHRINKIT
.shm    Shell macro (WordPerfect Library)
.shn	Shorten audio compression file
.shp    Shape file and source file for text fonts (AutoCAD)
.shr    Unix ASCII file archive created by SHAR (unshar.zip)
.shs    Scrap Object
.shw    Presentation (Harvard Graphics 2.0 - CorelShow)
	Slide show (WordPerfect Presentations)
.shx    Shape entities (AutoCAD)
.sid	Commodore64 Music file
        LizardTech MrSID Photo
.sif    Setup Installation Files info (Windows NT Setup)
.sig	Current program settings (Signature)
	PrintShop Sign file
	Signature file (PopMail)
.sik    Backup file (Sicherungskopie) (MS Word)
.sim	Aurora
	PC Finder 2002C
	PowerDVD file
	Simulation (various)
.sis	SymbianOS Installer file
.sit    Compressed Macintosh archive created by STUFFIT (unsit30.zip)
.skf	Autosketch file
.skn    Interface skins images (FileWrangler, SecurDesk!, SecurDesk! LV, ZipWrangler)
.sl     S-Lang source code file
.slb    Slide library (AutoCAD)
.slc    Compiled SALT script (Telix)
.sld    Slide (AutoCAD)
.sli    Slide (MAGICorp Slide Service)
.slk    Sylk Symbolic Link format data file (MultiPlan)
.sll    Sound data file
.slt    Salt Script Application Language for Telix script source (Telix)
.sm     Smalltalk source code file
	Maillist (SoftSpoken Mailer)
	Script (ScriptMaker)
	Text file (Samna Word)
.smc	Super Nintendo Game-console ROM Image
.smd	StarOffice Mail
.smf    Fax (SMARTFAX)
.smi	RealPlay SMIL file
        Self Mounting Image file
.smk	Compressed File (Smacker)
.smm    Macro (Ami Pro)
.smp    Sample (sound file)
.sms	Microsoft Package Definition file
	Sega Master System Emulator
.smt    Text file (Smart Ware II)
.snd    Digitized sound file (Macintosh/ATARI/PC)
.sng    Song (midi sound) (Midisoft Studio - Prism)
.snm	Netscape mail
.sno    Snobol4 source code file
.snp    CoffeeCup HTML Editor Snippet
	Computer Eyes Video Output
	Microsoft Access Snapshop
	Snapview Shapshot
.snx	Mirage Microdrive Snapshot Extended Version
	Second Nature Software Graphic
	StarCraft Saved file
.sol    Solution eg. game walkthroughs
.som    Network serial numbers (Quattro Pro)
	Sort information (Paradox)
.son    Song (SBStudio II)
.sou    Sound data (sound tool)
.sp     Compressed file archive created by SPLINT (unix)
.spa	Macromedia FutureSplash file
	Smart Protocol Analyzer Real Time Communication Data
	SmartPA Saved Capture file
	Thermo Nicolet OMNIC file
.spc    Program (MS Multiplan)
	Temporary file (WordPerfect for Win)
.spd    Scalable font (Speedo) (Harvard Graphics 3.0)
.spf    Slide presentation file (EnerGraphics)
.spg    Glossary (Sprint)
.spi    Graphics (Siemens and Philips scanner)
.spl    Compressed file archive created by SPLINT (splint.arc)
	Customized printer driver (Sprint)
	Personal spell dictionary (Signature)
	Print spooling file (Windows 3.x)
	Sample
.spm    Data (WordPerfect) wp{wp}.spm
.spo	Statistical Program (SPSS)
.spp    Printer file (Sprint)
.spr    Document letter (Sprint)
	Genarated screen program (FoxPro)
	Sprite
.sps    Spssx source code file (VAX/VMS)
	Screen driver (Sprint)
.spt    Spitbol source code file
	Support file (MITAC disk/system management utility pack)
.spw    Worksheet (SigmaPlot)
.spx    Compiled screen program (FoxPro)
.sql    SQL report or query
.sqz    Compressed file archive created by SQUEEZE (sqz1083e.exe)
.src    Source (DataFlex)
.srf    Sun Raster File graphics
.srp    Script (QuickLink)
.srt	BSplayer Subtitle file
	Omron CX-Supervisor
	SDR99 Speech Recognition Task Speech Recogniser Transcript
.ss     Bitmap graphics (Splash)
.ssa	Subtitles
.ssd    Datafile (SAS/PC)
.ssf	Enable Spreadsheet file
.ssm    RealPlayer Standard Streaming Metafile
.ssp    Datafile (SAS Transport)
.st     Smalltalk source code file (Little Smalltalk)
	Instrument library (Scream Tracker)
	Stamp (NeoPaint)
.st3	MIDI Karaoke file
.sta    Saved state (Reflection 4.0)
	Stack (Spinmaker Plus)
.stb    Stub library (Genus GX Kernel)
.std    State Transition Diagram graphic file (Prosa)
	Standard (something..) (LocoScript)
.stf    Compressed file archive created by SHRINKTOFIT
.stm    State Transition Diagram model file (Prosa)
	Music (Scream Tracker)
.stn	ArcView Geocoding Standardization file
	STiNG file 
.sto    Pascal stub OBJ file (Genus GX Kernel)
.stp	PageKeeper Packed Storage file
        DART Pro 98 system settings
        AP203 Step file
.str    Structure list object file (dBASE Application Generator)
.sts    Project status info (MS C/C++)
	Song format (Scream Tracker)
.stt	Automap Template
	SureThing CD Labeler Template file
.stu	Tarantella Enterprise 3 3270 Emulator Style file
	xyALGEBRA file
.stw    Data file (SmartTerm for Windows)
.stx    Electronic book (SmarText)
	Tax form (CA-Simply Tax)
.sty    Style library or sheet (many text and graphics programs)
.sub	CloneCd related file
.sui    Suit library (Simple User Interface Toolkit)
.sum    Summary
.sun    Sun rasterfile graphics
.sup    Supplementary dictionary (WordPerfect for Win)
.sv4	RollerCoaster Tycoon Saved Game
.svd    Autosave file for document (MS Word)
.svg    Autosave file for glossary (MS Word)
.svp	WISCO Survey Power
	Sonique Visual Plugin file
	SwiftView Command file
.svs    Autosave file for style sheet (MS Word)
.sw     Audio file (signed word)
.swd	Storybook file 
        Sabiston Textbook
.swf	ShockWave Flash object
.swg    Swag packet (SWAG Reader)
.swi	Swish Data file
.swk	Swapkeys Keyboard File
.swp    Document backup (Sprint)
	Swap file (DOS)
.sxw	OpenOffice.org Writer 6.0 text file
        Staroffice Word Document
.sy1    Smartpix symbol library (Ami Pro)
.sy3    Symbol file (Harvard Graphics 3.0)
.syd    Backup of startup files created by QEMM (?) autoexec.syd
.sym    Precompiled headers (Borland C++)
	Program symbol table (many compilers and linkers)
	Symbol file (Harvard Graphics 2.0)
.syn    Sdsc Synu image file (SDSC Image Tool)
	Synonym file (MS Word 5)
.sys    Datafile (SYGRAPH - SYSTAT - SPSS/PC)
	System file - device driver or hardware configuration info (DOS)
.syw    Graphics symbols (Harvard Graphics Win)
.t      Tads source
	Tape Archive (tar) without compression
	Tester symbol table (ReaGeniX code generator)
.t44    Temporary file for Sort or Index (dBASE IV)
.t64    Program (C64S emulator)
.tab	Guitar Tablature file
        MapInfo Table
        Diabetes Mentor file
.tag    Query tag name (DataFlex)
.tah    Turbo Assembler Help file (Borland C++)
.tal    Text illustration (TypeAlign)
.tao	IsoBuster file
.tar    Compressed file archive created by TAR (pax2exe.zoo)
.tax	TurboTax file
.taz    Compressed ASCII file archive created by TAR and COMPRESS (.tar.Z)
.tb1    Font file (Borland Turbo C)
.tb2    Font file (Borland Turbo C)
.tbf    Fax (Imavox TurboFax)
.tbh	Mah Jongg for Windows Tile Set
.tbk    Memo backup (dBASE IV - FoxPro)
	Toolbook (Asymetrix ToolBook)
.tbl    Graphics (native format) (PageMaker TableEditor)
	Table of values (OS/2)
.tbs    Text elements ?? (Textbausteine) (MS Word)
.tbx    Table (Project Scheduler 4)
.tc     Configuration (Turbo C - Borland C++)
.tch    Turbo C Help file (Borland C++)
.tcl    Tool Command Language source code (Swat)
.tcw    Drawing (TurboCAD for Windows)
.td     Configuration file (Turbo Debugger for DOS)
.td0    Disk image file (Teledisk)
.td2    Configuration file (Turbo Debugger for Win32)
.tdb    Database (TACT)
.tdf    Font (TheDraw)
	Typeface definition file (Speedo)
.tdh    Help file (Turbo Debugger)
.tdk    Keystroke recording file (Turbo Debugger)
.tds    Symbol table (Turbo Debugger)
.tdt	ASCII Data File in CSV Format 
	Daylight Fingerprint Data file
.tdw    Configuration file (Turbo Debugger for Windows)
.tee	TeeChart Office graphic
.tef    Fax (Relisys TEFAX)
.tel    Host file (Telnet)
.tem    Turbo Editor Macro Language script (Borland C++)
	Input template (IconAuthor)
.tex    Tex text file (Scientific Word)
	Datasheet (Idealist)
.tf     Configuration (Turbo Profiler)
.tfa    Area file (Turbo Profiler)
.tfc    Catalogue file (Tobi's Floppy Cataloguer)
.tfh    Help file (Turbo Profiler)
.tfm    Tex Font Metric file (TeX)
	Tagged font metric file (Intellifont)
.tfs    Statistics (Turbo Profiler)
.tfw	ArcView World File For TIF Image
	Digital Raster Graphic World
.tg1    Project file (On Target)
.tga    Truevision Targa bitmap graphics
.tgz    Compressed file archive created by TAR and GNUzip (.tar.gz)
.thb	KinuPix Skin
.thd	Thread
.thm	Microsoft Clipart Gallery database
	Serif DrawPlus Theme
.thn	Graphics Workshop for Windows Thumbnail
.ths    Thesaurus dictionary (WordPerfect for Win)
.tif    Tagged Image File Format bitmap graphics (PageMaker - CorelDRAW)
.til    Fuzzy logic knowledge base (Togai InfraLogic Fuzzy-C Compiler)
.tim	Playstation Game Texture Image
        The Incredible Machine Level File
.tis    Tile set (MahJongg 3.0)
.tix	ASA for UNIX Terminfo Extension file
	DivX file
	Hybrid Graphics file
	Tix Widgets
.tjl    Backup file (VAXTPU editor)
.tlb    Reference table (Bubble Chamber)
	Text library (VAX)
.tlb    Type library (Visual C++)
.tlc    Compiled Tool Command Language source code (Swat)
.tlp    Project (TimeLine)
.tlt	Trellix Web Design file
.tmb	Timbuktu Pro Connection Document
.tmd	Document (TextMaker)
.tmf    Tagged Font Metric file (WordPerfect for Win)
.tmo    Ztg global optimizer default output file (Zortech C++)
.tmp    Temporary file
.tmq	TestMaster file
.tms    Script (Telemate)
.tmv	Template (TextMaker)
.toc    Table Of Contents
.tol	Kodak Photoenhancer
.tos    Self-extracting file archive (Atari ST)
.tp     Configuration (Turbo Pascal)
	Session-state file (Turbo Profiler)
.tp3    Template (Harvard Graphics 3.0)
.tpb    Downloadable PCL Soft font file backup (HiJaak)
.tpf    Downloadable PCL Soft font file (HiJaak)
.tph    Help file (Turbo Pascal)
.tpl    Resident units library (Turbo Pascal)
	Template (Harvard Graphics 2.0)
.tpp    Protected Mode Units (Borland Pascal 7.0)
.tps	Clarion for Windows data file
.tpu    Turbo Pascal Unit (BGI) (Turbo Pascal)
	Command file (VAXTPU editor)
.tpw    Session-state file (Turbo Profiler for Windows)
	Turbo Pascal Unit (BGI) (Turbo Pascal for Windows)
.tpz    Compressed file archive created by TAR and GNUzip (.tar.gz)
.tr     Session-state settings (Turbo Debugger for DOS)
	Man page input suitable for troff -man (cawf2.zip)
.tr2    Session-state settings (Turbo Debugger for Win32)
.trace	ECXpert Debugging file
	TcpDump Output file
	Telcordia Software Visualization and Analysis Toolsuite
	WebSTAR Mail Server Error file
	Zope 3 Strace Log
.trc    Debug support file (Power CTrace)
.tre    Directory tree file (PC-Tools)
.trg	Symantec LiveUpdate file
.tri	Trigram file
.trk	Kermit Script file
	Mixman Studio Track
	Train Dispatcher Railroad Centgralized Traffic Control Simulation
.trm    Terminal settings (Windows 3.x)
.trn    Translation support file (Quattro)
.trp	Tripmaker file
.trs    Executable file (Micrografx)
.trw    Session-state settings (Turbo Debugger for Windows)
.trx	Emerald PC Authorize Batch Transaction file
.tsk	Skins for Pocket PC PDAs
        PhotoImpact Quick Command
.tsp	Windows Telephony Service Provider
.tst    Printer test file (WordPerfect for Win)
.ttf    Truetype Font file
.tub	PaintShop Pro Tube file
.tut    Tutorial
.tv     Table view settings (Paradox)
.tv1    Overflow file above insert point in Doc 1 (WordPerfect for Win)
.tv2    Overflow file above insert point in Doc 2 (WordPerfect for Win)
.tv3    Overflow file above insert point in Doc 3 (WordPerfect for Win)
.tv4    Overflow file above insert point in Doc 4 (WordPerfect for Win)
.tv5    Overflow file above insert point in Doc 5 (WordPerfect for Win)
.tv6    Overflow file above insert point in Doc 6 (WordPerfect for Win)
.tv7    Overflow file above insert point in Doc 7 (WordPerfect for Win)
.tv8    Overflow file above insert point in Doc 8 (WordPerfect for Win)
.tv9    Overflow file above insert point in Doc 9 (WordPerfect for Win)
.tvf    Table view settings (dBASE)
.tvo	TeveoLive
.tvp	NVIDIA Graphic Card Update file
.tvt	RealPlayer
.txd	Grand Theft Auto 3 Texture file
	Letters Direct 
.txf    Compressed file archive created by TAR and FREEZE (.tar.f)
.txi    Support file (TeX)
.txl	Genesis3D Texture file
.txt    Text file
.tym    Time Stamp (PageMaker 4)
.tz     Compressed file archive created by TAR and COMPRESS (.tar.Z)
.tzb    Compressed file archive created by TAR - COMPRESS - BTOA (.tar.Z.btoa)
.uax	Unreal Audio file
.ub     Audio file (unsigned byte)
.uc2    Compressed file archive created by UltraCompressor II (uc2.zip)
.ucn    New compressed file archive created by UltraCompressor II
.ucs	Universal Classification Standard Database file
.udc	Acrobat Spelling file
.udf    Filter (Photostyler)
.udl	MS Data Link
.uds	Sierra Generations Family file
.ue2    Encrypted file archive created by UltraCompressor II
.ufo	Ulead Object file
.uha	UHARC Compressed Archive
.uhs    Universal Hint System (binary file)
.ui     Espire source code file (Geoworks UI Compiler)
	User interface (Sprint)
.uif    Long prompts for windows (WordPerfect for Win)
.uih    Espire header file (Geoworks UI Compiler)
.ul     Ulaw audio file
.uld    Information about uploaded files (Procomm Plus)
.ult    Music (UltraTracker)
.umb    Backup file (MemMaker)
.umx	Unreal music file
.uni    Unimod music module (MIKMOD)
	Datafile (Forecast Pro)
.unq	Fax View file 
.unx    Text file containing UNIX specific info
.upd    Program update info
	Update data (dBASE)
.upo    Compiled update data (dBASE)
.upx	ULead Photo Express Saved Image file
.usb	D-Link FM Radio Update
        USB Protocol Analyzer Trace
.usp    Printer font with USASCII extended character set (PageMaker)
.usr    User database file (Procomm Plus - Turbo C++ tour)
.utf	AOL Updating Files 
.utl	Sound file
.utx	Unreal Texture file
	Unicode file 
.uu     Compressed ASCII file archive created by UUDE/ENCODE
.uue    Compressed ASCII file archive created by UUENCODE (uuexe515.exe)
.uvr	Ulead Cool 360 Viewer file
.uw     Audio file (unsigned word)
.uwl	WordPerfect User word list
.v      Consistency check support file (ReaGeniX code generator)
	Main input file for an image (Vivid 2.0)
.v64	Nintento 64 Emulation ROM Image 
.val    Validity checks and referential integrity (Paradox for Windows)
	Values list object file (dBASE Application Generator)
.van    Animation (VistaPro)
.var    Variable file (IconAuthor)
.vbc	Visual Business Cards
.vbd	ActiveX file
.vbe	VBScript Encoded Script file
.vbn	Norton Corporate anti-virus quarantined file 
.vbp	Visual Basic Project
.vbs	Visual Basic Script file (Visual Basic)
.vbw	Visual Basic Project Workplace (Visual Basic)
.vbx    Visual Basic eXtension (Visual Basic)
.vc     Include file with color definitions (Vivid 2.0)
	Spreatsheet (VisiCalc)
.vcd	VisualCADD Drawing file
	Video CD format
.vcf    VCard file
.vch	Interlock Public Computer Utility
.vcw    Visual workbench information (MS Visual C++)
.vcx    Spreatsheet (VisiCalc Advanced)
.vda    Bitmap graphics
.vdb	Norton AntiVirus Corporate Edition Update file
        PC-cillin Quarantined file
.vdf	AntiVir virus definition file
        Vexira Anti-virus virus definition file
.vdm	VDM Play
.vdr    Drawing (ComputerEasy Draw)
.vdx	XML for Visio Drawing file
        Vector Graphic file
	Virtual Device Driver 
.vem	VeePro Embroidery Software Format
	Voice E-mail file
.vew    View file (Clipper 5, Lotus Approach)
.vfm    Voting Form (Voter)
.vfn    Voting Form for Customers (Voter)
.vfp	TMPGEnc VFAPI Plug-in
.vfx	Ulead Video Studio Sample file
.vga    Vga display driver
	Vga display font
.vgd    Vga display driver (Generic CADD)
.vgr    Graphics (Ventura Publisher)
.vi     Graphics (Jovian Logic VI)
.vic    Vicar graphics
.vid    Ms-DOS Shell Monitor file (MS-DOS 5)
	Bitmap graphics (YUV12C M-Motion Frame Buffer)
	Screen device driver (Word)
.vif    Khoros Visualization image file (SDSC Image Tool)
.vik    Viking graphics
.vir	Virus Infected file 
.vis    Vis graphics
.viv	VivoActive Player Video file
.vlm	Ashlar-Vellum file
	Novell Virtual Loadable Module
	Vellum CAD Drawing
.vm     Virtual Memory file (Geoworks)
.vm1	Panasonic SD Voice Editor file
.vmc    Virtual memory configuration (Acrobat reader)
.vmf    Font characteristics (Ventura Publisher)
	Voice mail file (VocalTec Voice)
.vml	Vecor Markup Language
.vmo	Mobile Phone voice file (Siemens Sl45)
        Virtools Behavioral Server Composition (Web-based Protected Format)
        Cosmopolitan Virtual Makeover File
.vmp	Logos Library System 2.x Verse Map
.vms    Text file containing VMS specific info
.vo     Include file with object definition (Vivid 2.0)
.vob	DVD video movie file
.voc    Digitized samples (Creative Voice file)
.vof    Object folder (VZ Programmer)
.vol	Tribes 2 game file
        Earth Siege 2 Archive
        Giants: Citizen Kabuto Archive
        Tribes Archive
        Tribes Extreme Archive  
.vor	OpenOffice.org Template
.vox	Vox Audio
        Dialogic ADPCM
        Talking Technology Inc. file
        Natural MicroSystmes Voice file
.vpa	Excite Chat Gestures file
.vpd	Virpet Performance Descriptor
	VitaGraph file
.vpg    Graphics (VPGraphics)
.vpp	Virtual Pool Game
        Red Faction/Summoner Package file
.vqe	Yamaha Sound-VQ Locator file
.vqf	Yamaha Sound-VQ file
.vql	Yamaha Sound-VQ Locator file
.vrd	VRScape data file
.vrm    Overlay file (QuattroPro)
.vro	Panasonic DVD Recorder file
.vrp    Project (WATCOM VXRexx)
.vrs    Video Resource eg. video device driver (WordPerfect)
.vs     Include file with surface definition (Vivid 2.0)
.vsd    Diagram (Shapeware Visio)
.vsl	GetRight Download List file
	Visio Library
.vsm    Simulation model (VisSim)
.vsp    Sprite (SPX)
.vss    Smartshapes file (Shapeware Visio)
.vst    Truevision Vista bitmap graphics
.vtx	XML for Visio template file
.vue    Animation (3D Studio)
	View (dBASE IV - FoxPro)
.vw     Text file (Volkswriter)
.vw3	Text file (Volkswriter 3)
.vwl	VideoWave Video Wave Library 
.vwr    File viewer file (PC Tools)
.vwt	VideoWave Thumbnail
.vxd    Virtual device driver (MS Windows)
.vxs	Voice Xpress User Profile
.vyd	VyperHelp
.w      Word chart file (APPLAUSE)
.w30    Printer font (AST TurboLaser) (Ventura Publisher)
.w31    Startup file (Windows 3.1)
.w3g	Warcraft III file
.w3m	Warcraft III Map file
.w44    Temporary file for Sort or Index (dBASE)
.wab    Outlook File
.wac	Infinity Game Engine WAVC Sound
.wad	Doom Game file
	Gunman Chronicle Archive  
	Half Life Archive  
	Heretic Archive  
	Hexen Archive
	Quake Archive
	Theme Park World Archive
.waf	Mayim's WAF Compiler file
.wal	WalMaster Showlist file
.war	Java Web Archive
.wav    Waveform audio file (RIFF WAVE format)
.wb1    Notebook (Quattro Pro)
.wb2    Spreadsheet (Quattro Pro)
.wb3	Quattro Pro for Windows
.wba	WindowBlinds Compressed Skin (changes the look and feel of WindowsXP)
.wba	Winace Zip file
.wbc	Webshots Picture Collection
.wbf    Ms Windows Batch File (Catch)
.wbk    Document/workbook (WordPerfect for Win)
.wbt    Batch file (WinBatch)
.wbx	Webigger file
.wbz	WebShots file
.wcd    Macro token list (WordPerfect for Win)
.wcm    Data transmission file (MS Works)
	Macro (WordPerfect for Win)
.wcp    Product information description (WordPerfect for Win)
.wd2	Info Select for Palm Organizer file
	WordExpress Document   
.wdb    Database (MS Works)
.wdf	ReliaSoft Weibull 5.0
	Workshare DeltaView DeltaFile
.wdl	Windows XP Watchdog Log file
.web    Web source code file
.wfm    Form object (dBASE Form Designer)
.wfn    Font (CorelDRAW)
.wfx    Data file (Winfax)
.wg1    Worksheet (Lotus 1-2-3/G)
.wg2    Worksheet (Lotus 1-2-3 for OS/2)
.wid    Width table (Ventura Publisher)
.win    Window file (FoxPro - dBASE)
	Wonderware InTouch window file
.wiz    Page wizard (MS Publisher)
.wjp	WildTangent Branded .jpg file
.wk1    Spreadsheet (Lotus 1-2-3 version 2.x - Symphony 1.1+)
.wk3    Spreadsheet (Lotus 1-2-3 version 3.x)
.wk4    Spreadsheet (Lotus 1-2-3 version 3.4)
.wkb    Document (WordPerfect for Win)
.wke    Spreadsheet (Lotus 1-2-3 educational version)
.wkq    Spreadsheet (Quattro)
.wks    Spreadsheet (Lotus 1-2-3 version 1A - Symphony 1.0 - MS Works)
	Workspace (Xlisp)
.wll	Word Add-in
.wlk    Graphics (Virtus Walkthrough)
.wlt	eWallet file
        WaveL Wavelet Compressed Graphic
        Words of Worship Liturgy
.wma	Microsoft Active Streaming file 
.wmc    Backup of startup files by Windows MathCad autoexec.wmc
	Macro file (WordPerfect for Win)
	Text file (WordMARC)
.wmf    Windows MetaFile vector graphics
.wml	Wireless markup language
.wmv	MS Active Streaming file
.wmz	Windows Media Compressed skin file
.wn     Text (NeXT WriteNow)
.wnf    Outline font description (CorelDRAW native format)
.wo4	STABCAL file
.wo7	STABCAL file
.woa    Swap file (Windows 3.x)
.woc    Organization (Windows OrgChart)
.wor	MapInfo Workspace
.wot	WebEx Saved Meeting Movie
.wow    Music (8 channels) (Grave Mod Player)
.wp     Text file (WordPerfect 4.2)
.wp5    Document (WordPerfect 5.x)
.wpd    Document (WordPerfect 6.0 - PFS:WindowWorks)
.wpf    Fax (WorldPort)
	Form (WordPerfect)
.wpg    WildTangent Branded .PNG file
	Wordperfect Graphics vector graphics (DrawPerfect)
.wpj	MS Works Projects
.wpk    Macros (WordPerfect for Win)
.wpl	Draxy Software Wallpaper Sequencer
	Online WebPanel file
	PFS WinWorks Spreadsheet
	WHAT IF MOL-object
	Words of Worship Playlist
.wpm    Macros (WordPerfect)
.wps    Text document (MS Works)
.wpt	WordPerfect template
        602 pro PC SUITE template document file
.wpw	PerfectWorks document  
.wq!    Compressed spreadsheet (Quattro Pro)
.wq1    Spreadsheet (Quattro Pro)
.wr1    Spreadsheet (Symphony 1.1 - 1.2 - 2)
.wrd    Template (Charisma)
.wri    Text file (Windows Write)
.wrk    Spreadsheet (Symphony 1.0, 1.2, 2.0, 3.0)
.wrl	Plain text VRML file
.wrml	Plain text VRML file
.wrp    Compressed Amiga file archive created by WARP
.wrs    Windows Resource eg. printer driver (WordPerfect for Win)
.ws     Text file (WordStar 5.0-6.0)
.ws2    Text file (WordStar 2000)
.wsc	Windows scripting component file
.wsd    Document (WordStar)
.wsp    Workspace (Fortran PowerStation)
.wsr	FirstStop WebSearch file
.wst    Text file (WordStar)
.wsx	WinMX Filesharing Program
.wsz	Skin Zip file (WinAmp)
.wtr	MS Encarta file
.wve	Component of a DIVX Movie Conversion
        Psion Series 3a/3c/3mx Waveform sound file
.wvx	Metafile
.wvw	Backup Wonderware InTouch window file
.wwb    Button bar for document window (WordPerfect for Win)
.wwk    Keyboard layout (WordPerfect for Win)
.wwp	Worms World Party Teams file
.wws	AutoRoute User Information
.wwv	WildTangent Branded .WAV file
.wxp    Document (EXP for Windows)
.wxs	Easy Cross crosstitch file
.x      Avs X image file (SDSC Image Tool)
	Lex source code file
.x01    Secondary index (Paradox)
.x02    Secondary index (Paradox)
.x03    Secondary index (Paradox)
.x04    Secondary index (Paradox)
.x05    Secondary index (Paradox)
.x06    Secondary index (Paradox)
.x07    Secondary index (Paradox)
.x08    Secondary index (Paradox)
.x09    Secondary index (Paradox)
.x16	Macromedia Program Extension (16-bit)
.x32	Macromedia Program Extension (32-bit)
.xbm    X11 Bitmap graphics
.xdf	Milnta APL Transfer Function
	Workshare Synergy file
.xfd	XML Form in XFDL Format
.xfn    Printer font (Xerox 4045) (Ventura Publisher)
.xft    24 pin printer font (ChiWriter)
.xfx    Fax File (various)
.xi     Fast Tracker 2 Instrument or ScreamTracker Instrument File
.xif    Wang image file
        Often a Fax image (TIFF) file
        ScanSoft Pagis XIF Extended Image Format
        Xerox image file
.xla    Xlib Archive (xlibpas2.zip)
.xla    Add-in macro sheet (MS Excel)
.xlb    Data (MS Excel)
.xlc    Chart document (MS Excel)
.xlk	Excel Backup
.xll    Excel Dynamic Link Library (MS Excel)
.xlm    Macro sheet (MS Excel)
.xlr	MS Works file
.xls    Spreadsheet(MS Works)
	DATAIR Data Import Specification Translation file
	Worksheet (MS Excel)
.xlt    Template (MS Excel)
	Translation table (Lotus 1-2-3 - Symphony - Procomm Plus)
.xlw    Workbook (MS Excel)
.xlx	XoloX Incomplete Download file
.xm     Music (Fast Tracker)
.xmi    Compressed eXtended MIdi music
.xml	Extensible Markup Language file
.xnf    Standard Network File form
.xnk	Microsoft Exchange Shortcut
.xpl	Music file
.xpm    X11 Pixel Map graphics
.xpr	Memorex CD-ROM label file
.xpt	XPCOM Type Library
.xpw	Leading Market Technologies EXPO
	Screen-Fillable Surfer Version of a Form
.xqt    Executable file (Waffle)
.xqt    Macro sheet (SuperCalc)
.xrf    Cross-reference file
.xsd	XML Schema file  
.xsf	Milnta APL Transfer Function
.xsl	Extensible Stylesheet Language file
.xss	Ability Office Spreadsheet
.xtb    External translation table (LocoScript)
.xvb	WinExplorer VB Script
.xwd    X Window System window dump image graphics (SDSC Image Tool)
.xwk    Keyboard mapping (Crosstalk)
.xwp    Session (Crosstalk)
	Text file (Xerox Writer)
.xx     Compressed file ASCII archive created by XXENCODE (uuexe515.exe)
.xxe    Compressed file ASCII archive created by XXENCODE (uuexe515.exe)
.xxx	Singer Sewing Machine Professional SewWare file
        Embroidery Design file
.xy     Text file (XY Write)
.xy3    Text file (XYWrite III)
.xyw    Text file (XyWrite III)
.xyz	ASCII RPG Maker Graphic Format
	XMol XYZ
.y      Yacc grammar file
	Compressed Amiga file archive created by YABBA
.y01    Secondary index (Paradox)
.y02    Secondary index (Paradox)
.y03    Secondary index (Paradox)
.y04    Secondary index (Paradox)
.y05    Secondary index (Paradox)
.y06    Secondary index (Paradox)
.y07    Secondary index (Paradox)
.y08    Secondary index (Paradox)
.y09    Secondary index (Paradox)
.yal    Data (Arts & Letters)
.yuv    Yuv graphics
.yz     Compressed file archive created by YAC
.z      Compressed file ASCII archive created by COMPRESS (comp430d.zip)
	Compressed file archive created by PACK (Unix SysV pack)
.z3     Infocom game module
.zap	FileWrangler Compressed file
        MS Windows Software Installation Settings
.zbd	Canon ZoomBrowser Database file
	MechWarrior 3 Snow Fields file
	Zebedee Encrypted file
.zdb	Wonder Word data file
.zdg    Compressed ZiffNet text document (Zview)
.zdp	ZDNet Password Pro 32
.zer    Data file (Zerberus)
.zfx	ZFX - CC3 File Packer Tool
.zgm    Graphics (Zenographics)
.zip    Compressed file archive created by PKZIP (pkz204g.exe)
.zls	Atlantis Ocean Mind Word Processing file
.zom    Compressed Amiga file archive created by ZOOM
.zon	Grand Theft Auto 3 Zone file
.zoo    Compressed file archive created by ZOO (zoo210.exe)
.zst	ZSNES Slot 0 Savestate
.ztd	Ziff Davis Media text database
.zvd    Zyxel Voicefile (Z-Fax)
.zzt	ZZT Game Creation System
.~$~    Temporary file (1st Reader)
.~ap    Old AppExpert project database (Borland C++ 4.5)
.~de    Project backup (Borland C++ 4.5)
.~mn    Menu backup (Norton Commander)
.\201$\201      Temporary file (1st Reader)


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