.$$$ ---- Temporary file
.001 ---- FAX
.2gr ---- A file that allows Windows to display text and graphics in standard mode- 286 or 386 computer
.301 ---- Fax
.386 ---- Swap file; enables computer running in enhanced mode to use Windows with virtual memory
.3ds ---- Graphics (3D Studio)
.3gr ---- A file that allows Windows to display text and graphics in standard mode- 386, 486, or Pentium computer
.411 ---- Sony Mavica Data file
.4th ---- Forth (language) source code
.8 ---- A86 assembler source code file
.906 ---- Calcomp plotter
.1 ---- A Unix nroff source file.
.!im ---- Multimedia image file.
._ad ---- Multimedia audio file.
._au ---- Multimedia audio file.
._im ---- Multimedia image file.
.a ---- Unix library
.a ---- Ada (language) source file
.a3l ---- MacroMedia Authorware Windows Library
.a4m ---- Unpackaged Authorware MacIntosh file
.a4p ---- Authorware file packaged without runtime
.a4w ---- Unpackaged Authorware Windows file
.aam ---- Authorware shocked file
.ab8 ---- Datafile (ABStat)
.aba ---- Address Book file (Palm)
.abf ---- Adobe Binary Format
.abk ---- AutoBackup (Corel Draw)
.abm ---- PhotoPlus Album File
.abr ---- Brush (Adobe Photoshop)
.abs ---- MPEG sound file
.acd ---- Sonic Foundry Acid sound file
.acf ---- Agent Character File (Microsoft)
.acl ---- Keyboard accelerator, Corel Draw
.acm ---- Windows system directory file
.acmv ---- Drivers for compressing or decompressing audio files, OS/2
.ad ---- After Dark Screen Saver
.ada ---- Ada source file
.add ---- Adapter Driver (OS/2)
.adi ---- Graphics (AutoCAD)
.adm ---- AfterDark MultiModule
.adn ---- Add-in (Lotus 1-2-3)
.adr ---- AfterDark Randomizer
.ads ---- Specification file type, Ada language
.afi ---- Truevisiion bitmap graphic
.afm ---- Adobe Font Metrics (Type 1)
.ag4 ---- Access G4
.ai ---- Adobe Illustrator subset of .EPS (vector graphics)
.air ---- Audio Interchange File Format or AIFF
.all ---- Arts and Letters Library
.all ---- General printer data (WordPerfect Win)
.alt ---- Menu file (WordPerfect Win)
.ani ---- Animation
.ans ---- ANSI text, graphics
.api ---- Application Program Interface
.app ---- MacroMedia Authorware package
.app ---- Add-in application (Symphony)
.app ---- Executable application
.arc ---- Compressed file using PKARC
.arj ---- A PC compressed format found on European sites
.art ---- Art file, in draw or paint applications
.asc ---- ASCII text file
.ascx ---- ASP.NET user control file (Microsoft)
.asd ---- Autosave file (Word for Windows)
.asf ---- Active Streaming File
.asf ---- Screen Font (Lotus 1-2-3)
.asi ---- Assembler include file
.asm ---- Assembly language source
.asmx ---- .NET Web Service file (Microsoft)
.asp ---- Active Server Page (Microsoft)
.aspx ---- ASP.NET file (Microsoft)
.ast ---- Assistant file (Claris Works)
.atm ---- Adobe Type Manager
.au ---- A sound file format used on Sun Microsystems or other UNIX computers
.avi ---- Audio Video Interleaved (MS multimedia)
.avs ---- Intel video capture format
--- B ---
.b64 ---- Base 64, encoding format used by the MIME.
.bad ---- Bad file (Oracle)
.bak ---- Backup file
.bas ---- BASIC source file
.bat ---- Batch job (DOS)
.bay ---- DOS batch file
.bbs ---- Bulletin Board System
.bcp ---- Borland C++ makefile
.bcw ---- Borland C++ environment settings
.bfc ---- Briefcase document (Windows)
.bfm ---- Font metrics - UNIX
.bga ---- Bitmap graphics
.bib ---- Bibliography (ASCII)
.bin ---- Driver
.bin ---- A MacBinary II encoded file
.bk ---- Backup file
.bk ---- Faxbook (JetFax)
.bk! ---- Backup file (WordPerfect Windows)
.bk$ ---- Backup file
.bkf ---- Backup file (Microsoft)
.blk ---- Temporary file (WordPerfect Windows)
.bm ---- Bitmap graphics file
.bmp ---- Bitmap graphics file
.bnk ---- Sim City game file
.brx ---- Browse Index (multimedia CD-ROMs)
.btm ---- Batch file (Norton Utilities
.bup ---- Backup file
.buy ---- Movie datafile
--- C ---
.c ---- C program file.
.c++ ---- C++ source f.ile
.c00 ---- Ventura Print file
.ca ---- Cache data (root domain server)
.cab ---- Microsoft compressed format
.cal ---- Calendar or CALS
.cal ---- Spreadsheet (SuperCalc)
.cap ---- Caption (Ventura Publisher)
.cas ---- Comma-delimted ASCII file
.cbl ---- Cobol source file
.cbt ---- Computer-Based Training; a tutorial file
.cc ---- C++ source code file
.cch ---- Corel chart
.ccm ---- Lotus cc:Mail
.cct ---- Director Shockwave file (Macromedia)
.cda ---- CD Audio track
.cdr ---- Vector graphics file (Corel Draw)
.cdt ---- Corel Draw Data
.cdx ---- Visual FoxPro database index
.cel ---- Graphics (Autodesk Animator)
.cfb ---- Comptons multimedia encyclopedia
.cfg ---- Configuarion file
.cfl ---- Corel Flow
.cfm ---- ColdFusion Markup language
.cgi ---- Common Gateway Interface (script)
.cgm ---- Graphics metafile
.ch ---- Clipper Header file
.chd ---- Font Description
.chk ---- Checkdisk (CHKDSK) Recovered file
.chk ---- Temporary file (WordPerfect Windows)
.chl ---- Configuration History Log
.chp ---- Chapter file (Ventura)
.chr ---- ASCII character file (MegaZeux)
.cif ---- Chapter Information File (Ventura)
.cim ---- Sim City file
.cit ---- Intergraph scanned image
.ckb ---- Keyboard mapping (Borland C++)
.cl ---- Common LISP source file
.clp ---- Clipboard
.clp ---- Clip art (Quattro Pro)
.cls ---- C++ class definition file
.cmd ---- file of commands, OS/2 batch file
.cmf ---- Corel MetaFile
.cmf ---- SoundBlaster file
.cmp ---- LEAD Technologies graphics
.cmv ---- animation (CorelMove)
.cnc ---- general program data
.cnf ---- Configuration file
.cnq ---- Compuworks Design Shop
.cnv ---- data conversion support (Word for Windows)
.cnv ---- Temporary file (WordPerfect Windows)
.cob ---- COBOL source code
.cod ---- Program compiled code (FORTRAN)
.col ---- Spreadsheet (Microsoft Multiplan)
.com ---- Command file, excutable, smaller version of .EXE (DOS)
.cpe ---- Fax Cover document
.cpl ---- Code Page (DOS)
.cpl ---- Control Panel (Windows)
.cpp ---- C++ file
.cpr ---- Knowledge Access graphics
.cpt ---- Compact Pro compressed file
.cpx ---- Corel Presentation Exchange compressed file
.cpz ---- COMPOZ Music text file
.crd ---- Windows Cardfile
.crp ---- Encrypted database (dBASE IV)
.crs ---- Conversion Resource (WordPerfect)
.crt ---- Certificate
.crt ---- Oracle terminal settings information
.csc ---- Corel Script
.csm ---- Precompiled headers (Borland C++)
.css ---- Cascading Style Sheet, Cascading StyleSheets
.csv ---- Comma Separated Values text file (ASCII)
.csv ---- Comma delimited, MS Excel
.ctl ---- Control file
.cty ---- City file (SimCity)
.ctx ---- Ciphertext file (PGP-RSA)
.cuf ---- C Utilities Form (definition)
.cul ---- Windows cursor library
.cur ---- Windows cursor image
.cut ---- Dr. Halo graphics
.cv ---- Microsoft CodeView
.cvp ---- Cover page (WinFax)
.cvs ---- Canvas graphics file
.cwk ---- Claris Works
.cws ---- Claris Works Template
.cxx ---- C++ source file (Zortech)
--- D ---
.dat ---- Data file
.db ---- Database file
.dbc ---- Visual FoxPro database
.dbf ---- Database file
.dbg ---- Symbolic debugging info (C/C++)
.dbk ---- Database backup
.dbm ---- Datafile
.dbo ---- Compiled Program (dBase IV)
.dbs ---- Database (SQL Windows)
.dbs ---- Printer description
.dbt ---- Database Text
.dbt ---- Database memo file
.dbt ---- Style Memo (FoxPro)
.dbw ---- DataBoss Windows file
.dbx ---- DATABEAM graphics
.dca ---- IBM text
.dcf ---- Disk image file
.dcp ---- Data CodePage (OS2)
.dcs ---- Color Separation (CMYK) EPS
.dcs ---- Datafile (ACT!)
.dct ---- Database Dictionary
.dct ---- Spell check dictionary
.dcx ---- Bitmap graphics
.dd ---- DiskDoubler compressed file
.ddb ---- Bitmap graphics
.ddi ---- Disk Doubler Image file
.ddi ---- Diskdupe Image file
.ddp ---- Device Driver Profile (OS2)
.deb ---- Debug script (DOS)
.def ---- Definition (C++)
.dem ---- Demonstration
.der ---- Certificate
.dev ---- Device driver file
.dfv ---- Printing form (Word)
.dg ---- Autotrol graphics
.dgn ---- Intergraph graphics
.dgs ---- Diagnostics
.dht ---- Datafile
.dia ---- Diagraph graphics
.dib ---- Device-independent bitmap graphics
.dic ---- Dictionary
.dif ---- Database (VisiCalc)
.dif ---- Data Interchange Format (spreadsheet)
.dip ---- Graphics
.dir ---- Directory file (VAX)
.dir ---- Movie file (Director)
.dis ---- Distribution file (VAX)
.dis ---- Thesaurus (Corel)
.diz ---- Description file
.dkb ---- Raytraced graphics
.dld ---- Data (Lotus 1-2-3)
.dll ---- Dynamic Link Library
.dll ---- Export/import (CorelDRAW)
.dls ---- Disklock Setup (Norton)
.dmg ---- Disk Image (Mac OS X)
.dmo ---- Demo
.dmp ---- Dump file
.dms ---- Compressed file archive (Diskmasher/Amiga)
.doc ---- Document (ASCII or MS Word)
.dos ---- Network driver
.dos ---- Text file for DOS
.dot ---- Line type definition (CorelDRAW)
.dox ---- MultiMate document
.doz ---- Description Out Zip
.dp ---- Calendar (Daily Planner)
.dpi ---- Dots Per Inch (graphics)
.dpr ---- Delphi project file (C++)
.drs ---- Display Resource (WordPerfect)
.drv ---- Device driver (printer)
.drw ---- Graphics file (Micrografx)
.ds4 ---- Designer graphics, version 4
.dsc ---- Discard file (Oracle)
.dsd ---- Database (DataShaper)
.dsk ---- Project desktop file (Borland C++)
.dsf ---- Designer graphics, version 6
.dsm ---- Digital Sound Module
.dsn ---- Design
.dsr ---- Driver Resource (WordPerfect)
.dss ---- Sound file (Digital Soup)
.dsw ---- Desktop Settings (Borland C++)
.dta ---- Data file
.dtd ---- Document Type Definition (SGML)
.dtf ---- Database file (PFS)
.dvc ---- Data (Lotus 1-2-3)
.dvi ---- Device Independent document
.dvi ---- Full-motion video file (Micrografx)
.dvp ---- Device Paramater file (AutoCAD)
.dw2 ---- Drawing (DesignCAD)
.dwc ---- Compressed file archive (DWC)
.dwg ---- Drawing file (AutoCAD)
.dx ---- Text file (DEC)
.dx ---- Document Imaging
.dxf ---- Drawing Interchange File Format (AutoCAD)
.dyn ---- Data (Lotus 1-2-3)
--- E ---
.ebj ---- Error checking object file
.ed5 ---- EDMICS graphics
.edt ---- Default Settings (VAX editor)
.eeb ---- Equation Editor button bar (WordPerfect Windows)
.efx ---- Fax (Everex)
.ega ---- Display font (Ventura Publisher)
.el ---- Elisp source file (Emacs lisp)
.elc ---- Compiled Elisp code (Emacs lisp)
.emf ---- Enhanced Metafile
.emf ---- E-mail file
.eml ---- Electronic Mail (Outlook Express)
.ems ---- Enhanced Menu System Config (PC Tools)
.emu ---- Terminal emulation data
.enc ---- Encoded file (UUENCODE)
.enc ---- Music (Encore)
.end ---- Arrow-head definition file (CorelDRAW)
.env ---- Environment file (WordPerfect Windows)
.eps ---- Encapsulated PostScript (vector graphics)
.eps ---- Printer font (Ventura Publisher)
.eqn ---- Equation (WordPerfect Windows)
.err ---- Error Messge/Log
.esh ---- Extended Shell batch file
.esi ---- Esri plot file
.evt ---- Event log
.evy ---- Document (WordPerfect Envoy)
.exe ---- Executable program
.ext ---- Extension file (Norton)
--- F ---
.f ---- Fortran source file
.f01 ---- Fax
.f06-16 ---- Screen text font, 6-16 pixels (DOS)
.f77 ---- Fortran 77 source file
.f96 ---- Fax
.fax ---- Frequently Asked Questions
.fax ---- Fax file (raster graphics)
.fc ---- Dictionary (Harvard Graphics)
.fd ---- Fortran Declaration file (Microsoft)
.fdx ---- Force Index
.ffl ---- Fast Find File (Microsoft)
.fh3-4 ---- Freehand 3-4 (vector graphics)
.fi ---- Fortran Interface file
.fif ---- Fractal Image format
.fil ---- Files list object file (dBASE)
.fil ---- Overlay (WordPerfect)
.fot ---- File Index Table (WindowsNT)
.fix ---- Patch file
.fky ---- Macro file (FoxPro)
.flc ---- Animation file (Autodesk)
.fld ---- Thumbnail folder (Hijaak)
.fli ---- Animation file (Autodesk)
.flo ---- Micrografx FlowCharter
.flr ---- Live3D
.flt ---- Filter (graphic conversion)
.fm ---- Framemaker
.fm3 ---- Spreadsheet (Lotus 1-2-3 v3)
.fm3 ---- Device driver (Harvard Graphics)
.fmB ---- File Manager Button bar (WordPerfect Windows)
.fmk ---- Fortran Makefile
.fmo ---- Compiled format file (dBASE)
.fmt ---- Format (dBASE)
.fmt ---- Screen format
.fnt ---- Font file
.fO1-02 ---- Font file (Borland)
.fog ---- Fontographer font
.fon ---- Bitmapped Font (Windows)
.fon ---- Phone file
.for ---- FORTRAN source code
.fot ---- Windows TrueType font
.fox ---- FoxBase
.fp ---- FileMaker Pro
.fp1 ---- Flying Pigs
.fp3-5 ---- FileMaker v3-5
.fpc ---- FoxPro Catalog
.fpt ---- FoxPro Memo
.fpx ---- FlashPix bitmap
.frf ---- Font (FontMonger)
.frm ---- Report form file (dBASE, VisualBasic)
.frs ---- WordPerfect Graphics Driver
.frt ---- Report memo (FoxPro)
.frx ---- Report (FoxPro)
.fsl ---- Form (Paradox)
.fsx ---- Data (Lotus 1-2-3)
.ftm ---- Font (Micrografx)
.fw ---- Database (Framework)
.fxp ---- Compiled format (FoxPro)
.fxs ---- Fax Transmit Format (WinFax)
--- G ---
.g4 ---- GTX RasterCAD
.gbl ---- Global definitions
.gc1 ---- Lisp Source code
.gca ---- GOCA graphics
.gcd ---- Graphics file
.gdf ---- Dictionary file
.ged ---- Arts & Letters graphics
.ged ---- Graphics Editor
.gem ---- Vectir Graphics file (Ventura)
.gen ---- Compiled template (dBASE)
.gen ---- Generated text (Ventura)
.gep ---- Geode
.geo ---- VideoScope
.gib ---- Graph-in-the-Box Chart
.gif ---- Graphics Interchange Format bitmap (CompuServe)
.giw ---- .Presentation (Graph-in-the-Box)
.gly ---- Glossary
.gp3 ---- CCITT compressed Group 3-4 TIFF file
.gph ---- .Graph (Lotus 1-2-3)
.gr2 ---- .Screen driver (Windows 3.x)
.gra ---- Microsoft Graph
.grn ---- Ms-DOS Shell Monitor file
.grf ---- Graphic file (Micrografx)
.grp ---- Group definition (Windows)
.grp ---- Pictures Group
.gs1 ---- Presentation
.gsd ---- Vector graphics (Professional Draw)
.gsw ---- GraphShow Worksheet
.gx1 ---- Show Partner graphics
.gxl ---- Graphics Library
.gz ---- Unix file compuressed by GZIP
--- H ---
.h ---- Header - C
.h++ ---- Header - C++
.ha ---- HA Compressed file
.hdf ---- Hierarchical Data File
.hdf ---- Help file
.hdr ---- Datafile
.hdr ---- Message header text
.hdw ---- Harvard Draw Vector graphics
.hdx ---- Help index (AutoCAD - Zortech C++)
.hed ---- HighEdit document
.hel ---- Microsoft Hellbender game file
.hex ---- Hex dump
.hfi ---- HP font info
.hgl ---- HP Graphics Language
.hh ---- C++ header
.hhh ---- Precompiled header
.hhp ---- Help Information
.hlb ---- Help Library (VAX)
.hlp ---- Help file (Windows)
.hof ---- Hall Of Fame (game scores)
.hpf ---- HP LaserJet fonts
.hpg ---- HPGL plotter file vector graphics (AutoCad,Harvard. Graphics)
.hpi ---- Font information file
.hpj ---- Help Project (Visual Basic)
.hpk ---- HPACK compressed file
.hpl ---- HP Graphics
.hpm ---- Emm text (HP NewWave)
.hpp ---- C++ header file
.hqx ---- Compressed Macintosh file.
.hrf ---- Graphics file
.hsi ---- Graphics file (Handmade Software)
.hst ---- History file
.hst ---- Host
.ht ---- HyperTerminal
.htm ---- DOS filename extension for HTML document
.html ---- Hypertext Markup Language
.htx ---- Hypertext file
.hwd ---- Presentation file (Hollywood)
.hwp ---- Hangul Word Processor
.hxx ---- C++ header file
.hy1-2 ---- Hyphenation algorithms (Ventura)
.hyc ---- Hyphenation (WordPerfect)
.hyp ---- Hyphenation dictionary
.hyp ---- HYPER compressed file archive
--- I ---
.i ---- Intermediate file (C++)
.iax ---- Bitmap graphics (IBM)
.ica ---- Bitmap graphics (Image Object Content Architecture)
.icb ---- Targa bitmap graphics
.icl ---- Icon Library
.icm ---- Image Colour Matching
.icn ---- Icon source file
.ico ---- Icon file (Windows)
.icon ---- Sun icon and cursor
.id ---- Disk identification file
.idd ---- Instrument Definition (MIDI)
.ide ---- Integrated Development Environment configuration
.ide ---- Project (C++)
.idw ---- Vector graphics
.idx ---- Index
.ifd ---- Form (JetForm)
.iff ---- Interchange File Format (Amiga)
.iff ---- Image File Format (Sun TAAC)
.ifo ---- Graphics objects (ImageForge)
.ifs ---- System file (OS/2)
.igf ---- Inset Systems graphics (Hijaak)
.iif ---- Interchange File (QuickBooks)
.il ---- Icon library
.im8 ---- Raster graphics (Sun)
.ima ---- Vector graphics (Mirage)
.ima ---- WinImage compressed format
.img ---- ImageForge/IconForge file
.img ---- Mac disk image
.img ---- Bitmap graphics (Ventura)
.img ---- High-resolution scanned image file
.imp ---- Spreadsheet (Lotus)
.imq ---- Image Presentation
.in3 ---- Input device driver (Harvard Graphics)
.inc ---- Include file
.ind ---- Index (dBASE)
.inf ---- Information file
.inf ---- Information file Type 1 LaserJet font
.inf ---- Information file (ASCII)
.inf ---- Install script
.ini ---- Initialization file
.ink ---- Pantone reference file (CorelDRAW)
.ins ---- Data (WordPerfect)
.ins ---- Installation script
.int ---- Borland Interface
.inx ---- Index (Foxbase)
.iob ---- Imagine file
.ioc ---- Organizational chart
.ipl ---- Pantone Spot reference palette
.irs ---- Resource (WordPerfect)
.isd ---- Spell checker dictionary
.iso ---- ISO-9660 table
.isu ---- Netscape file
.it ---- MOD music file format
.iw ---- Idlewild screensaver
.iwa ---- Text file (IBM)
.iwp ---- Text file (Wang)
.ix ---- Index file (FrameMaker)
--- J ---
.jax ---- Graphics
.jav ---- Java source file
.jbx ---- Project file
.jet ---- Fax (JetFax)
.jff ---- JFIF, JPEG File Interchange Format
.jif ---- JPEG image format
.jpeg ---- JPEG bitmap file
.jpg ---- JPEG image file
.jtf ---- JPEG bitmap file
--- K ---
.kdc ---- Kodak Photo-Enhancer
.kfx ---- Kofax
--- L ---
.lbl ---- Label description (dBASE)
.lbm ---- Deluxe Paint graphics file
.ldb ---- Lock file (Microsoft Access)
.leg ---- Legacy document
.lha ---- PC/Amiga compression format
.lhs ---- Literate Haskell source file
.lhx ---- LHA compression file
.lib ---- Library
.lic ---- License file (usually shareware)
.log ---- Log of installations or usage
.lst ---- List
.lwp ---- Lotus Word Pro
.lzh ---- LHARC compression
.lzs ---- PC/Amiga compression format
--- M ---
.mac ---- Mac Paint
.maf ---- Microsoft Access Form
.mak ---- Makefile (VisualBasic, etc)
.mam ---- Microsoft Access Macro
.mam ---- Microsoft Access Macro
.map ---- Map - linkage editor
.maq ---- Microsoft Access Query
.mar ---- Microsoft Access Report
.mat ---- Microsoft Access Table
.mbx ---- Message Base (Eudora)
.mcs ---- MathCAD format
.mcw ---- Microsoft Word for Macintosh
.mdb ---- Database file (MS Access)
.mdx ---- Multi-index
.me ---- READ.ME text file
.met ---- Metafile format
.meu ---- Menu
.mff ---- MIDI file format
.mgf ---- Micrografx Draw Font
.mi ---- Miscellaneous
.mic ---- Microsoft Image Composer
.mid ---- MIDI digitized music file
.miff ---- ImageMagick file format
.mil ---- Group 4
.mime ---- Multipurpose Internet Mail Extension
.mme ---- Mime encoded file
.mmf ---- Microsoft Mail File
.mmm ---- Macromind animation
.mod ---- Music file format
.mov ---- Movie file (Apple QuickTime)
.moz ---- Mozilla Netscape cache file
.mp3 ---- Sound file
.mpe ---- MPEG file
.mpeg ---- MPEG (Moving Pictures Experts Group) multimedia file
.mpg ---- Encoded MPEG file
.mpkg ---- meta package, a group of .pkg files
.mpnt ---- Macintosh MacPaint
.mpp ---- Microsoft Project project file
.mpt ---- Microsoft Project template file
.mpx ---- Microsoft Project export file
.mrk ---- Markup (Informative Graphics)
.msg ---- Message file
.msn ---- Microsoft Network document
.msp ---- Microsoft Paint
.mus ---- Music file
.mvb ---- Microsoft Multimedia Viewer
.mys ---- Myst saved game file
--- N ---
.ndx ---- Index file (dBASE)
.net ---- Network file
.ng ---- Norton Guides
.nlm ---- NLM program (NetWare)
.ntf ---- Notes Template File (Lotus Notes)
--- O ---
.oab ---- Outlook Address Book (Microsoft)
.oaz ---- OAZ Fax
.obd ---- Microsoft Office Binder
.obj ---- Object module
.ocx ---- Object Linking and Embedding (OLE)
.olb ---- OLE Object Library
.ole ---- OLE object
.onx ---- Onyx Graphics Postershop
.ori ---- Original
.ovl ---- Program overlay file
.ovr ---- Overlay module
--- P ---
.p ---- Pascal source code file
.p10 ---- Tektronix Plot10
.pab ---- Personal Address Book (Microsoft Outlook)
.pak ---- Quake game data
.pak ---- PAK compressed file archive
.pal ---- Paintbrush palette
.pan ---- Printer-specific file
.pas ---- Pascal program file
.pat ---- Pattern (Corel Draw)
.pat ---- Hatch patterns (AutoCAD)
.pb1 ---- Document (First Publisher)
.pba ---- Powerbasic BASIC source code
.pbi ---- Powerbasic include file
.pbl ---- Powerbasic library
.pbk ---- Microsoft Phonebook
.pbm ---- Portable Bit Map
.pbo ---- Profiler Binary Output
.pbt ---- Profiler Binary Table
.pcd ---- Bitmap graphics file (Photo CD format)
.pcl ---- HP LaserJet
.pcm ---- HP LaserJet cartridge info.
.pcs ---- PICS animation
.pct ---- PC Paint
.pcw ---- PC Write
.pcx ---- PC Paintbrush
.pcx ---- Graphics file (ZSoft format)
.pdf ---- Portable Document Format (Acrobat)
.pdg ---- PrintShop Deluxe
.pdv ---- PC Paintbrush printer driver
.pfa ---- Type 1 font (ASCII)
.pfb ---- Type 1 font (encrypted)
.pfm ---- Postscript Font Metrics; Windows Type 1 font metrics
.pgl ---- HPGL 7475A plotter (vector graphics)
.pgm ---- Portable Gray Map (bitmap)
.phtml ---- HTML document with preprocessing instructions (PPIs)
.pic ---- Picture file (Macintosh PICT)
.pict ---- Picture file (Macintosh PICT)
.pif ---- Program Informaton file
.pit ---- PackIt (Mac compression)
.pix ---- Inset Systems graphics
.pjx ---- Project file (Visual FoxPro)
.pkg ---- Apple package compression format
.pl ---- Perl script
.plt ---- Plotter drawing
.pm ---- Page Layout file (PageMaker)
.pm3-4-5 ---- Page Layout file (PageMaker v3,v4,v5)
.png ---- Portable Network Graphics bitmap
.png ---- Paint Shop Pro Browser
.pov ---- Persistence Of Vision raytracer
.ppa ---- PowerPoint Add-in (Microsoft)
.ppd ---- PostScript Printer Description
.ppm ---- Portable PixelMap
.pps ---- PowerPoint Slideshow
.ppt ---- PowerPoint Presentation
.prd ---- Printer driver file (MS Word)
.prg ---- Procedure or program file
.prj ---- Project file
.prn ---- Print file (temporary)
.prn ---- PostScript file
.prs ---- Printer file (WordPerfect)
.prt ---- Formatted text
.ps ---- PostScript (Page description file)
.pst ---- MS Outlook personal folder
.pub ---- Publication (Ventura, MS)
.pwd ---- Pocket Word document (Microsoft)
.pwz ---- PowerPoint Wizard (Microsoft)
.pxl ---- Pocket Excel (Microsoft)
--- Q ---
.qbw ---- QuickBooks - Windows
.qdk ---- Quarterdeck Qemm
.qlb ---- Quick Library
.qlc ---- ATM font information
.qry ---- Microsoft Query
.qt ---- QuickTime movie
.qtm ---- QuickTime movie
--- R ---
.r8l ---- LaserJet landscape font
.r8p ---- LaserJet portrait font
.ra ---- RealAudio - sound or multimedia file
.ras ---- Raster graphics (Sun)
.raw ---- Raw file format (bitmap)
.rc ---- run commands (Unix)
.rec ---- Windows Recorder macro file
.reg ---- Registration file
.rep ---- Report file
.rft ---- RFT-DCA
.rgb ---- RGB image file (SGI- Silicon Graphics)
.ria ---- Alpharel Group IV raster graphics
.rib ---- Renderman graphics
.ric ---- Roch FaxNet
.rif ---- Painter bitmap
.riff ---- Resource Interchange File Format (multimedia)
.rla ---- Wavefront raster image
.rlc ---- CAD Overlay ESP (Image Systems)
.rle ---- Run Length Encoded (compressed bitmap file)
.rmi ---- RIFF MIDI file
.rnd ---- AutoShade format
.rnl ---- GTX Runlength raster graphics
.rpt ---- Report file
.rtf ---- Rich Text Format
--- S ---
.s ---- Assembly language file (Unix)
.s3m ---- MOD music file
.sam ---- AmiPro file
.sam ---- Symantec Anti-Virus
.sav ---- Saved file (games etc)
.sbp ---- IBM Storyboard graphics
.sc ---- Source Code (Paradox)
.scm ---- ScreenCam Movie
.scp ---- Dial-up networking script
.scr ---- Screensaver (Windows)
.scr ---- Screen Layout (dBASE)
.sct ---- Screen Capture Text (Lotus)
.sdl ---- SmartDraw Library
.sea ---- Self-Extracting Archive (Stuffit or Compact Pro)
.seg ---- Segment (of a compressed file saved in segments)
.sep ---- TIFF bitmap
.set ---- Setup parameters
.sfl ---- LaserJet landscape font
.sfp ---- LaserJet portrait font
.sfs ---- PCL 5 scalable font
.shar ---- UNIX shell archive
.shtml ---- HTML file with embedded server-side includes (SSI)
.si ---- SoftImage image file
.sig ---- Signature file
.sit ---- Macintosh file compressed with StuffIt.
.sld ---- Slide format file (AutoCAD)
.slk ---- Symbolic Link (SYLK) spreadsheet
.smi ---- self-mounting Disk Copy compressed image
.snd ---- Sound file
.snm ---- Netscape mail
.spd ---- Speedo scalable font
.sqb ---- SyQuest Backup
.src ---- Used with .INI files for configuration settings
.sty ---- Style sheet file (Ventura)
.svx ---- Amiga 8SVX sound
.swp ---- Swap - temporary file
.syd ---- Sysedit backup file
.syl ---- SYLK spreadsheet format
.sys ---- System file
--- T ---
.tal ---- Adobe Type Align
.tar ---- Tape ARchive (Unix tar utility)
.tar.gz ---- Combined filename extension for a file that has been archived using tar and then gzipped.
.tar.z ---- Combined filename extension for a file that has been archived using tar and then zipped.
.taz ---- Another way of writing .tar.z
.tbk ---- Asymetrix Toolbook
.tdf ---- Typeface definition (Speedo)
.tex ---- Tex or LaTex document
.tfm ---- Font metrics (Intellifont)
.tga ---- TARGA graphics file
.tgz ---- Same as .tar.z and .tar.gz
.thn ---- Thumbnail
.tif ---- Tag Image File format (graphics)
.tiff ---- Tag Image File Format (graphics)
.tlb ---- OLE Type Library
.tmp ---- Temporary file
.toc ---- Table Of Contents file
.trm ---- Terminal settings
.ttc ---- TrueType Compressed -font file
.ttf ---- TrueType Font file
.tx8 ---- MS-DOS text file
.txt ---- ASCI Text file
--- U ---
.usb ---- Universal Serial Bus
.usl ---- LaserJet landscape font
.usp ---- LaserJet portrait font
.uu ---- Uuencode compressed file
.uue ---- Uuencode file
--- V ---
.vbp ---- Visual Basic Project
.vbx ---- Visual Basic Extension
.vda ---- Targa bitmap
.vgr ---- Chapter file (Ventura)
.vid ---- Multimedia image file
.viff ---- Khoros Visualization image file
.vlb ---- Ventura Library
.voc ---- Sound file
.vp ---- Ventura Publisher file
.vst ---- Targa bitmap
.vue ---- Relational View (dBASE)
.vxd ---- Virtual Device Driver
--- W ---
.wab ---- Windows Address Book
.wav ---- Sound file
.wbk ---- Microsoft Word Backup
.wdb ---- Microsoft Works Database
.wid ---- Ventura width table
.win ---- Windows backup file
.wiz ---- Microsoft Word Wizard
.wk1 ---- Lotus 1-2-3, up to 2.01
.wk4 ---- Lotus 1-2-3 version 4
.wkq ---- Quattro spreadsheet
.wks ---- Spreadsheet (Lotus 1-2-3, MS Works)
.wlr ---- VRML file
.wmf ---- Windows Metafile
.wp ---- WordPerfect
.wpd ---- WordPerfect Document
.wpd ---- Windows Printer Description
.wpg ---- WordPerfect Graphics
.wpm ---- WordPerfect Macro
.wps ---- Word processor file (MS Works)
.wpt ---- WordPerfect Template
.wri ---- Windows write file
.wrk ---- Symphony spreadsheet
.ws1-7 ---- WordStar for Windows 1-7
.wvl ---- Wavelet compressed bitmap
--- X ---
.x ---- AVS X image file
.xar ---- Corel Xara drawing
.xbm ---- X Bitmap
.xfx ---- JetFax
.xif ---- Xerox Image Format
.xlc ---- Excel Chart
.xlk ---- Excel backup
.xlm ---- Excel macro
.xls ---- Spreadsheet (Excel worksheet)
.xlt ---- Excel template
.xm ---- MOD music format
.xpm ---- X Pixelmap
.xwo ---- X Window System window dump image
.xxe ---- Xxencoded file
--- Y ---
.yal ---- Arts & Letters click art
--- Z ---
.z ---- A file created by the Unix compress utility.
.zip ---- A compressed file using PZIP.
.zoo ---- Zoo