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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:
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U255LAW - Extension Details
Date Added: December 02, 2009
File Extension:  .U255LAW
Description 1: .U255LAW is the extension linked with Exponential 8bit sound. This type of file features an 8bit mono sound file format that is used by a number of old drum computers. Awave Studio is an application associated with the .U255LAW file. The Awave program refers to a multipurpose audio tool for reading a host of audiocarrying file formats from different trackers, platforms, mobile phones, synthesizers and more. Use Awave as an audio editor, a wavetable synthesizer instrument editor and format converter, a MIDI and audio player, and an audio file format converter.
File Type:   Audio/Music file
Mode: Binary
Program(s) to Open:  Associated application: Awave Studio
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