8/17/2019 Most Common File Extensions and Their Full Form

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Most common file extensions and their full form

.a - Assembly source file

.avi - Audio Video Interleave

.bak - Backup File

.bat - Batch Processing File

.bin - Binary File

.bmp - Bitmap Image File.c - C source files

.cab - Cabinet (installation archive format)

.com - Command File

.cpp - C++ source file

.daa - Direct Access Archive

.dat - Data file or Video CD MPEG File

.dll - Dynamic Link Library

.doc - Document (Word)

.docx - (Word) Open XML Format Document

.exe - Executable file

.fla - Flash Movie Authoring File

.flv - Flash Video File

.gif - Graphic Interchange Format

.hlp - Windows Help File

.htm/.html - Hypertext Markup Language.ico - Icon Image File

.ini - Initialization/Configuration File

.iso - ISO-9660 CD Disc Image(ISO - International Organization for Standardization).java - Java Source File.jpeg - Joint Photographic Experts Group.js - JavaScript.log - Log File.m3u - MP3 Uniform Resource Locator (MP3 URL)- Mp3 playlist.m4a - MPEG-4 Audio Layer .mp3 - MPEG Audio Stream Layer 3.mp4/.mp4v - MPEG-4 Video File.mpeg - Moving Picture Experts Group.msc - Microsoft Management Console Snap-in Control File

.msi - Windows Installer File

.nfo - Infomation (Text) File

.nrg - Nero Disc Image File (made by Nero AG)

.pdf - Portable Document Format

.png - Portable Network Graphics

.pps - PowerPoint Slideshow

.rar - WinRAR Compressed Archive (Roshal ARchive. Founder Roshan)

.rm - Real Media File

.srt - Subrip - Subtitle file format

.swf - Shockwave Flash (Flash Format File)

.sys - System Configuration File

.thm - Thumbnail (Images) or Theme File

.tif/.tiff - Tagged Image File Format

.tmp - Temporary File

.txt - text file

.vob - Video Object (DVD Video File)

.wav/.wave - WaveForm Audio Format

.wma - Windows Media Audio File

.wmv - Windows Media Video File

.xls - Excel Worksheet(Spreadsheet)

.xlsx - Open XML Format Excel Spreadsheet

.xml - Extensible Markup Language

.zip - Compressed Archive File

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