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.
.ds_store - macOS folder information
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 mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension ris - Research Information Systems citation
file extension part - Partial download
file extension download - Chrome partial download
file extension epub - Open Publication structure e-book
file extension rpt - Report
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 mus - Finale music file format
file extension bdoc - DigiDoc Client document
file extension sch - CAD schematics
file extension vpj - VideoPad video editor project
file extension nfv - Netflix downloaded video
file extension mui - MultiLanguage Windows resource data
file extension vdjsample - VirtualDJ audio sample
file extension cam - Casio QV digital CAMera image
file extension null - NULL image
file extension cm0012 - Western Digital WD TV corrupt data
file extension metadata_never_index - macOS metadata settings file
file extension switch - Egress Switch secured package
file extension pds - Cyberlink PowerDirector project
Thailand 1 5 10 Baht, ND 2007, P-117, COMM., uncut set, UNC - Bosch Security Systems CCTV video
file extension fmx - Oracle executable form
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