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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
BDIC - Extension Details
Date Added: January 01, 1970
File Extension:  .BDIC
Description 1: .BDIC file extension is linked with Chrome Dictionary File. This is the dictionary for Google Chrome which is a web browser developed by Google. Chromes spellchecker uses this dictionary in identifying misspelled words and it uses the file name "enus.bdic. .BDIC is referenced by an application and should not be manually opened.
File Type:   Data File
Mode: ASCII
Program(s) to Open:  Windows: Google Chrome
Common:
Extension: