File Types

The following is a table of popular file types and what program they are typically associated with.

Text and Document Files

 .doc Microsoft Word Document
 .docx Microsoft Word Open XML Document
 .rtf Rich Text Format File
 .pdf Portable Document Format File
 .txt Plain Text File
 .wpd WordPerfect Document
 .wps Microsoft Works Word Processor Document

Data Files

 .csv Comma Separated Values File
 .pps PowerPoint Slide Show
 .ppt PowerPoint Presentation
 .pptx PowerPoint Open XML Presentation

Audio Files

 .aif Audio Interchange File Format
 .m3u Media Playlist File
 .mid MIDI File
 .mp3 MP3 Audio File
 .mpa MPEG-2 Audio File
 .ra Real Audio File
 .wav WAVE Audio File
 .wma Windows Media Audio File

Video Files

 .asfAdvanced System Format File 
 .asxMicrosoft ASF Redirector File 
 .aviAudio Video Interleave File 
 .flvFlash Video File 
 .movApple QuickTime Movie 
 .mp4MPEG-4 Video File 
 .mpgMPEG Video File 
 .rmReal Media File 
 .swfFlash Movie 
 .vobDVD Video Object File 
 .wmvWindows Media Video File 

Image Files

 .aiAdobe Illustrator File 
 .bmpBitmap Image File 
 .drwDrawing File 
 .epsEncapsulated PostScript File 
 .gifGraphical Interchange Format File 
 .jpgJPEG Image File 
 .pngPortable network Graphic 
 .psPostScript File 
 .psdAdobe Photoshop Document 
 .svgScalable Vector Graphics File 
 .tifTagged Image File 

Spreadsheet Files

 .wksWorks Spreadsheet 
 .xlsExcel Spreadsheet 
 .xlsxMicrosoft Excel Open XML Spreadsheet 

Database Files

 .accdbAccess 2007 Database File 
 .dbDatabase File 
 .mdbMicrosoft Access Database 
 .pdbProgram Database 
 .sqlStructured Query Language Data 

Executable Files

 .appMac OS X Application 
 .batDOS Batch File 
 .cgiCommon Gateway Interface Script 
 .comDOS Command File 
 .exeWindows Executable File 
 .gadgetWindows Gadget
 .jarJava Archive File 
 .pifProgram Information File 
 .vb VBScript File

Web Files

 .aspActive Server Page 
 .cssCascading Style Sheet 
 .htmHypertext Markup Language File 
 .htmlHypertext Markup Language File 
 .jsJavaScript File 
 .jspJava Server Page 
 .phpHypertext Preprocessor File 
 .rssRich Site Summary 
 .xhtmlExtensible Hypertext Markup Language File 

Font Files

 .fntWindows Font File 
 .fonGeneric Font File 
 .otfOpenType Font 
 .ttfTrueType Font 

System Files

 .cabWindows Cabinet File 
 .cplWindows Control Panel Item 
 .curWindows Cursor 
 .dllDynamic Link Library 
 .dmpWindows Memory Dump 
 .drvDevice Driver 
 .lnkFile Shortcut 
 .sysWindows System File 

Compressed Files

 .gzGnu Zipped Archive 
 .pkgMac OS X Installer Package
 .rarWinRAR Compressed Archive
 .sitStuffit Archive 
 .tar.gzTarball File 
 .zipZipped File 


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