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The File Extension Library

What is a file extension?

Short answer: it's the set of letters after the period (.) in the name of a file.

Long answer: File extensions signify the file format of a file. It tells the operating system (OS) how data was stored in the file. Not all OS, require a file extension though. For instance, this is optional in Unix, but is mandatory with MS-DOS and Windows systems.

In most file formats the file type is actually defined by the contents (first bytes, file structure), but extensions are used to define the application that is used for opening the file.

Below is a detailed database of thousands of file extensions our team has compiled for you. Feel free to browse!


Browse all Extensions:
ABCDEFGHIJKLMNOPQRSTUVWXYZ
WAV - Extension Details
Date Added: February 09, 2008
File Extension:  .WAV
Description 1: The .WAV extension indicates users are dealing with waveform audio files. It identifies such files for a variety of applications, including Windows WAVE and PCM Wave audio. Using standard digital audio format, users can store waveform data, save them in different bitrates and sampling rates. CDquality audio is often saved with the .WAV extension. Music players like Windows Media Player and Apple iTunes support .WAV files.
File Type:   Audio file
Mode: Binary
Program(s) to Open:  Windows: Apple iTunes, Roxio Easy Media Creator, Microsoft Windows Media Player, any music player Macintosh: Apple iTunes, Roxio Toast, Microsoft Windows Media Player, any music player
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