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.
Latest articles
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.
.fdb - Firebird database
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 mp4 - MPEG-4 video file format
file extension rar - WinRAR RAR compressed archive
file extension jpg - JPEG bitmap image
file extension docx - Microsoft Word Open XML document
file extension exe - Program executable
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension ris - Research Information Systems citation
file extension download - Chrome partial download
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension part - Partial download
file extension rpt - Report
file extension epub - Open Publication structure e-book
file extension xapk - Google Android XAPK application package
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension wowsreplay - World of Warships replay
file extension _docx - Microsoft Word auto backup file
file extension tv - Corel Paradox table view settings file
file extension ap4 - Kids&Us Talking Pen audio
file extension menc - Microsoft Windows Mobile encrypted data
file extension vi2 - Kaspersky Anti-Virus quarantine data
file extension lrprev - Adobe Lightroom index file
file extension 008 - Compressed file from a multi-volume archive (part 8)
file extension mvdx - MindView mindmap archive
file extension thumbdata5 - Google Android thumbnail database
file extension devicemetadata-ms - Windows Device Metadata device package
file extension uhtml - UC Browser web document archive
file extension ftil - e-Hastakshar contract note
file extension gdactrequest - GetData product activation file
file extension pt - Page template
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