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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
GDM - Extension Details
Date Added: June 11, 2008
File Extension:  .GDM
Description 1: .GDM file extension is linked with Bells, Whistles and Sound Boards Module [BWSB]. The BWSB module is a digital music and audio programming library that is utilized by games, intros and demos, and many others. The music and sound effects are played as background audio which allows your program to function and do its own thing while audio is being played. .GDM file extension is also associated with Awave Studio from by FMJSoftware a multipurpose audio/sound tool which reads audiocarrying file formats from various platforms, trackers, synthesizers, mobile phones and others.
File Type:   Audio and Music File
Mode: Binary
Program(s) to Open:  Windows: FMJSoftware Awave Studio
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