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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
CBR - Extension Details
Date Added: September 11, 2008
File Extension:  .CBR
Description 1: .CBR file extension is linked with Comic Book Archive File or ComicBook Reader File. This is a compressed set of .PNG, .GIF or .JPEG images that have been saved in a single archive. The pages are ordered automatically and can be accessed one or two at a time. .CBR files are utilized for storing and displaying comic books or other page collections. .CBR files may be decompressed using a decompression utility to extract image files. But these image files will not be displayed and are usually in no particular order.
File Type:   Archived/Compressed File
Mode: Binary
Program(s) to Open:  Windows: Smith Micro Stuffit Expander, CDisplay, Other .RAR File Utility; Mac: Smith Micro Stuffit Expander, Feedface FFView; Unix: Comix along with UnRAR Decompression Utility
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