File extension or filename suffix is usually three, four or more characters at the end of computer file names divided by a dot.
File extensions are useful to computer programs and operating systems like Windows or macOS (OS X), and basically telling them, what kind of data and file type they are working with and what associated program opens the file.
File-extensions.org library contains thousands of file extensions and the database is still growing.
A large number of file type entries have detailed descriptions, including their current use and the list of programs that can open, view, edit, convert or play unknown file you search for.
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Begin your search by entering the source and target file type specified by their file extensions. For example simply try flac to mp3.
File extension of the day
Random daily pick from File-Extensions.org's database.
.qsp - QSetup Installation Suite data
For an overview of common file types,
visit the common file extensions page, which includes a list of the most important computer file formats you should know.
Popular file extensions
List of the most visited file extension records. Click on the link below for more details and software associations.
file extension apk - Google Android application package
file extension oxps - Microsoft OpenXPS document
file extension pdf - Adobe Portable document format
file extension jpg - JPEG bitmap image format
file extension mp4 - MPEG-4 video file format
file extension rar - WinRAR RAR compressed archive
file extension epub - Open Publication structure eBook
file extension cdr - CorelDRAW vector or bitmap graphics
file extension part - Partial download file
file extension srt - SubRip video subtitle format
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension one - Microsoft OneNote document
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension docx - Microsoft Word Open XML document
file extension json - JavaScript object notation data interchange format
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension hm~ - Help&Manual help project backup
file extension hxl - Microsoft Help registered namespace list file
file extension xsm - eXtra Simple Music file
file extension sseq - Nintendo DS sound data
file extension bub - Photobubble file
file extension mts - MetaCreations Streaming 3D Viewer file
file extension uaq - Microsoft Windows action queue file
file extension bbb - BlackBerry backup (post 2012)
file extension ima - WinImage backup file
file extension d3x - Nikon image format
file extension qam - Epson QuickAnime Player plugin
file extension aupreset - Apple Logic Studio preset file
file extension 3dd - ArcGlobe document file
file extension hdp - Magix Musstu file
file extension pdsprj - Proteus project
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