Computer File Extensions

 Text Files

.log                  ::          Log File

.wpd                ::          WordPerfect Document

.odt                  ::          OpenDocument Text Document

.pages              ::          Pages Document

.doc                 ::          Microsoft Word Document

.docx               ::          Microsoft Word Open XML Document

.tex                  ::          LaTeX Source Document

.wps                 ::          Microsoft Works Word Processor Document

.msg                 ::          Outlook Mail Message

.rtf                   ::          Rich Text Format File

.txt                   ::          Plain Text File

Data Files

.vcf                  ::          vCard File

.dat                  ::          Data File

.pptx                ::          PowerPoint Open XML Presentation

.sdf                  ::          Standard Data File

.tar                   ::          Consolidated Unix File Archive

.csv                  ::          Comma Seperated Values File

.xml                 ::          XML File

.pps                  ::          PowerPoint Slide Show

.ppt                  ::          PowerPoint Presentation

Audio Files

.aif                   ::          Audio Interchange File Format

.mpa                ::          MPEG-2 Audio File

.ra                    ::          Real Audio File

.iff                   ::          Interchange File Format

.wav                ::          WAVE Audio File

.wma               ::          Windows Media Audio File

.mp3                ::          MP3 Audio File

Video Files

.avi                  ::          Audio Video Interleave File

.3gp                 ::          3GPP Multimedia File

.flv                   ::          Flash Video File

.mpg                ::          MPEG Video File

.vob                 ::          DVD Video Object File

.mp4                ::          MPEG-4 Video File

.3g2                 ::          3GPP2 Multimedia File

.m4v                ::          iTunes Video File

.wmv               ::          Windows Media Video File

3D Image Files

.max                ::          3ds Max Scene File

.obj                  ::          Wavefront 3D Object File

.3ds                 ::          3D Studio Scene

.3dm                ::          Rhino 3D Model

Raster Image Files

.gif                   ::          Graphical Interchange Format File

.jpg                  ::          JPEG Image

.bmp                ::          Bitmap Image File

.psd                 ::          Adobe Photoshop Document

.png                 ::          Portable Network Graphic

Spreadsheet Files

.xls                   ::          Excel Spreadsheet

.xlr                   ::          Works Spreadsheet

.xlsx                 ::          Microsoft Excel Open XML Spreadsheet

Database Files

.pdb                 ::          Program Database

.dbf                 ::          Database File

.accdb              ::          Access 2007 Database File

.db                   ::          Database File

.sql                   ::          Structured Query Language Data File

.mdb                ::          Microsoft Access Database

Executable Files

.cgi                  ::          Common Gateway Interface Script

.com                ::          DOS Command File

.vb                   ::          VBScript File

.exe                  ::          Windows Executable File

.jar                   ::          Java Archive File

.bat                  ::          DOS Batch File

Web Files

.cer                  ::          Internet Security Certificate

.css                  ::          Cascading Style Sheet

.html                ::          Hypertext Markup Language File

.js                     ::          JavaScript File

.jsp                   ::          Java Server Page

.htm                 ::          Hypertext Markup Language File

.asp                  ::          Active Server Page

.php                 ::          PHP Source Code File

.xhtml              ::          Extensible Hypertext Markup Language File

.rss                   ::          Rich Site Summary

.aspx                ::          Active Server Page Extended File

Plugin Files

.plugin             ::          Mac OS X Plug-in

.crx                  ::          Chrome Extension

Developer Files

.cs                    ::          Visual C# Source Code File

.cpp                 ::          C++ Source Code File

.dtd                 ::          Document Type Definition File

.c                     ::          C/C++ Source Code File

.fla                   ::          Adobe Flash Animation

.class                ::          Java Class File

.java                 ::          Java Source Code File

Backup Files

.tmp                 ::          Temporary File

.bak                 ::          Backup File