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.
.studio3 - Silhouette Studio 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 pdf - Adobe Portable document format
file extension rar - WinRAR RAR compressed archive
file extension mp4 - MPEG-4 video file format
file extension jpg - JPEG bitmap image
file extension docx - Microsoft Word Open XML document
file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet
file extension epub - Open Publication structure e-book
file extension mp3 - Compressed audio and music file, mp3 songs or ringtones
file extension part - Partial download
file extension oxps - Microsoft OpenXPS document
file extension xapk - Google Android XAPK application package
file extension dwg - AutoCAD drawing
file extension crdownload - Google Chrome incomplete download
file extension dll - Dynamic Link Library
Recently updated file extensions
The file extension database is maintained and improved on daily basis. Here you can check last updated entries.
file extension crypz - CryptXXX ransomware affected data
file extension crypt1 - UltraCrypter ransomware encrypted file
file extension 1 - Unix unformatted manual page
file extension ete - EpsilonTest document
file extension xxx - Compucon/Singer PSW embroidery design
file extension tx - Photoline 5 help data
file extension fit - Garmin Training Center user activity profile
file extension spba - Samsung Kies phone contacts library
file extension thumbdata4--1967290299 - Android thumbnail index
file extension appxbundle - Microsoft Windows app bundle package
file extension tax2017 - TurboTax tax return 2017
file extension crypt12 - WhatsApp Messenger message database
file extension temp_audio - Android temporary audio file
file extension temp_video - Android temporary video file
file extension sav - SPSS Data Sets database
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