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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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S3M - Extension Details
Date Added: January 01, 1970
File Extension:  .S3M
Description 1: Scream Tracker 3.0 and later versions use an audio module format linked to the .S3M extension. These files contain sound samples as well as the musical score that defines notes played back or replayed by the samples. .S3M files are similar to .MOD files, only the former allow close to 16 tracks. Songs were saved as .STM files in Scream Tracker versions 1 and 2. The fresher .S3M format offers greater versatility and enjoys wider support. Future Crew developed all three Scream Tracker versions.
File Type:   Audio file
Mode: Binary
Program(s) to Open:  Windows: MODPlug, Myriad Software Harmony Assistant, WinAmp with AdPlug plugin Macintosh: CocoModX, MacModPlay, Myriad Software Harmony Assistant, Player Pro
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