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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
TMB - Extension Details
Date Added: January 01, 1970
File Extension:  .TMB
Description 1: The .TMB extension is linked to the Timbuktu Pro Document file. Timbuktu is a program allowing remote access to and control of one or more systems. .TMB files are remote access control files utilized by Timbuktu. These files store the connection settings for remote connections. Netopia, Inc., a Motorola Company, developed Timbuktu Pro. Timbuktu Pro Windows and Macintosh versions are able to communicate interchangeable with each other.
File Type:   Document file
Mode: Binary
Program(s) to Open:  Mac and Windows: Netopia Timbuktu Pro
Common:
Extension: