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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
TMX - Extension Details
Date Added: January 01, 1970
File Extension:  .TMX
Description 1: .TMX is short for Translation Memory eXchange file. It refers to an open XML standard that was developed to exchange Translation Memory (or TM) data generated by Computer Aided Translation (CAT) along with localization tools. TMX file format is a standard mode of translation memory data exchange between translation vendors and tools minus risks of data loss.
File Type:   Text file
Mode: ASCII
Program(s) to Open:  Windows: GlobalSight Ambassador, Idiom WorldServer, SDL International SDLX, TRADOS 7
Common:
Extension: