Computer Knowledge

List of Computer File Extensions and their Meaning

List of Computer File Extensions and their Meaning

List of Computer File Extensions and their Meaning

File extensions indicate the file format or file type. It is start dot (.) symbol and filename. File extensions consist of three or four characters, although in rare cases it could be two .Which are typically letters or digits.  Such as .txt, .mp3, .pptx etc. This file extension helps the operating system to know what type of file or program to run when you double-click on it. Here list of computer file extension and their meaning.
Executable File Extensions

File ExtensionFile Extension Meaning
.apkAndroid package file
.batBatch file
.binBinary file
.cgiCommon Gateway Interface Script
.comMS-DOS command file
.exeExecutable file
.jarJava Archive file
.pyPython file
.wsfWindows Script File

Audio File Extensions

File ExtensionFile Extension Meaning
.aifAIF/Audio Interchange audio file
.cdaCD audio track file
.iffInterchange File Format
.mid or .midiMIDI audio file.
.mp3MP3 audio file
.mpaMPEG-2 audio file
.wavWAVE file
.wmaWindows Media audio file
.wplWindows Media Player playlist

Video File Extensions

File Extension File Extension Meaning
.aviAudio Video Interleave File
.flvAdobe Flash Video File
.h264H.264 video File
.m4vApple MP4 video File
.mkvMatroska Multimedia Container
.movApple QuickTime movie File
.mp4MPEG-4 Video File
.mpg or .mpegMPEG video File
.rmReal Media File
.swfShockwave flash File
.vobDVD Video Object File
.wmvWindows Media Video File
.3g23GPP2 Multimedia File
.3gp3GPP multimedia File

Text File Extensions

File ExtensionFile Extension Meaning
.doc and .docxMicrosoft Word file
.odtOpenOffice Writer document file
.msgOutlook Mail Message
.pdfPDF file
.rtfRich Text Format File
.texA LaTeX document file
.txtPlain text file
.wks and .wpsMicrosoft Works Word Processor Document file
.wpdWordPerfect document

Spreadsheet File Extensions

File ExtensionFile Extension Meaning
.odsOpenOffice Calc spreadsheet file
.xlrMicrosoft Works spreadsheet file
.xlsMicrosoft Excel file
.xlsxMicrosoft Excel Open XML spreadsheet file

Presentation File Extensions

File Extension File Extension Meaning
.keyKeynote presentation
.odpOpenOffice Impress presentation file
.ppsPowerPoint slide show
.pptPowerPoint presentation
.pptxPowerPoint Open XML presentation

Database File Extensions

File ExtensionFile Extension Meaning
.accdbAccess 2007 Database File
.csvComma separated value file
.datData file
.db or .dbfDatabase file
.logLog file
.mdbMicrosoft Access database file
.pdbProgram Database
.savSave file (e.g. game save file)
.sqlSQL/Structured Query Language database file
.tarLinux / Unix tarball file archive

System Related File Extensions

File Extension File Extension Meaning
.bakBackup file
.cabWindows Cabinet file
.cfgConfiguration file
.cplWindows Control panel file
.curWindows cursor file
.dllDLL file
.dmpDump file
.drvDevice driver file
.icnsmacOS X icon resource file
.icoIcon file
.iniInitialization file
.lnkWindows shortcut file
.msiWindows installer package
.sysWindows system file
.tmpTemporary file

Web File Extensions

File Extension File Extension Meaning
.asp and .aspxActive Server Page file
.cerInternet security certificate
.cfmColdFusion Markup file
.cgi or .plPerl script file
.cssCascading Style Sheet file
.htm and .htmlHTML/Hypertext Markup Language file
.jsJavaScript file
.jspJava Server Page file
.partPartially downloaded file
.phpPHP Source Code file
.rssRSS/Rich Site Summary file
.xhtmlXHTML / Extensible Hypertext Markup Language file

Image File Extensions

File Extension File Extension Meaning
.aiAdobe Illustrator file
.bmpBitmap image File
.gifGIF/Graphical Interchange Format image
.icoIcon file
.jpeg or .jpgJPEG image
.max3ds Max Scene File
.objWavefront 3D Object File
.pngPNG / Portable Network Graphic image
.psPostScript file
.psdPSD / Adobe Photoshop Document image
.svgScalable Vector Graphics file
.tif or .tiffTIFF image
.3ds3D Studio Scene
.3dmRhino 3D Model

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2 Comments

  1. 1
  2. 2

    What about XQK? The ChiPmuNk client used to use it for most installers, and I believe WormSurf uses it too, as of version 6.

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