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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
G723 - Extension Details
Date Added: January 01, 1970
File Extension:  .G723
Description 1: .G723 file extension is linked with Raw CCITT [International Telegraph and Telephone Consultative Committee]/ITU G.723 ADPCM [Adaptive Differential PulseCode Modulation] sound format. This application is an ITU standard used for speech codec which utilizes ADPCM methods and provides users with toll quality. ADPCM uses lossy compression and mono audio format.
File Type:   Audio/Music File
Mode: Binary
Program(s) to Open:  Windows: Allok Audio Convertor, AudioKit, Complete Audio Converter Lite, Sprintbit Software File Audio Processor, libsndfile; Mac: libsndfile
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