File extensions sample

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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I want to convert from      to    

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.

fna file icon.fna - FASTA DNA and protein sequence alignment

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.

apk file extension icon file extension apk - Google Android application package

pdf file extension icon file extension pdf - Adobe Portable document format

rar file extension icon file extension rar - WinRAR RAR compressed archive

mp4 file extension icon file extension mp4 - MPEG-4 video file format

jpg file extension icon file extension jpg - JPEG bitmap image

docx file extension icon file extension docx - Microsoft Word Open XML document

xlsx file extension icon file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet

default file extension icon file extension epub - Open Publication structure e-book

mp3 file extension icon file extension mp3 - Compressed audio and music file, mp3 songs or ringtones

default file extension icon file extension part - Partial download

default file extension icon file extension xapk - Google Android XAPK application package

default file extension icon file extension oxps - Microsoft OpenXPS document

default file extension icon file extension ris - Research Information Systems citation

exe file extension icon file extension exe - Program executable

default file extension icon file extension crypt12 - WhatsApp Messenger message database

Recently updated file extensions

The file extension database is maintained and improved on daily basis. Here you can check last updated entries.

asf file extension icon file extension asf - Advanced Systems (streaming) format

default file extension icon file extension mcmeta - Minecraft animation settings

default file extension icon file extension camrec - Camtasia Studio video recording (version 8.3 or earlier)

default file extension icon file extension 4 - Salt Lake Winter Olympics game music data

ifo file extension icon file extension ifo - DVD movie information file format

job file extension icon file extension job - Microsoft Windows Task Scheduler task object

r44 file extension icon file extension r44 - Split Multi-volume RAR compressed file archive (part 46)

7z.004 file extension icon file extension 7z.004 - Split Multi-volume 7-ZIP compressed file archive (part 4)

default file extension icon file extension thumbdata5--1967290299_4 - Android thumbnail index

a01 file extension icon file extension a01 - Split Multi-volume ARJ compressed file archive (part 3)

m4v file extension icon file extension m4v - MPEG-4 video file format

odp file extension icon file extension odp - OpenOffice.org OpenDocument presentation

default file extension icon file extension max - PaperPort scanned document

default file extension icon file extension c2v - WellSight Systems license information file

7z.003 file extension icon file extension 7z.003 - Split Multi-volume 7-ZIP compressed file archive (part 3)

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

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