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.
Check out the recently published articles related to file extensions, tutorials or software tips.
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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.
.asd - Microsoft Word auto-save document
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 pdf - Adobe Portable document format
file extension pages - Pages document
file extension numbers - Apple Numbers spreadsheet
file extension oxps - Microsoft OpenXPS document
file extension rar - WinRAR RAR compressed archive
file extension epub - Open Publication structure eBook
file extension cdr - CorelDRAW vector or bitmap graphics
file extension jpg - JPEG bitmap image format
file extension vsdx - Microsoft Visio drawing
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension wtg - WAsP wind turbine generator data
file extension cor - Trimble GPS Pathfinder Office corrected SSF data
file extension syd - SYSTAT data
file extension fsk - Atari 8-bit cassette image
file extension d2p - Diablo 2 packet data
file extension 00 - Studievereniging Marie Curie binary data
file extension tfr - Star Wars Tie Fighter game pilot data
file extension at2 - Adobe Persuasion auto template
file extension snl - Egrid32 form snippet
file extension zm2 - ZoneAlarm Mailsafe renamed MDZ file