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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
ICB - Extension Details
Date Added: February 09, 2008
File Extension:  .ICB
Description 1: .ICB file extension is linked with Truevision Targa Format a format that is used for bitmap storage that works in conjunction with PC or Mac video captures ad graphics adapters. In 1989, additional capabilities of this format was revised. .ICB file extension is associated with Adobe Creative Suite from Adobe Systems Incorporated and ACDSee 10 Photo Manager from ACD Systems International Inc.
File Type:   Bitmap image file
Mode: Binary
Program(s) to Open:  Windows & Mac: Adobe Photoshop and Adobe Photoshop Elements
Common:
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