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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
TB - Extension Details
Date Added: January 01, 1970
File Extension:  .TB
Description 1: Files with the .TB extension contain instructions that Tabbery uses in launching a virtual tab on a users desktop. Each windows name along with its screen coordinates, order and size are included on the tab. Other items featured are bitmap thumbnails so users can preview a files contents. TB files also store files like spreadsheets, photo files, video, audio and word processing documents in compressed format.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Windows: Tabbery
Common:
Extension: