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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
ABK - Extension Details
Date Added: May 01, 2009
File Extension:  .ABK
Description 1: .ABK is linked with Need for Speed Underground game audio file. This software has speech and sound files used for Need for Speed games. This game application uses high definition environments, audio and sound features and fastest gameplay experiences with top choice elite tuner cars from Toyota, Mitsubishi, Subaru and many more. The Need for Speed Underground game and .ABK are owned by Electronic Arts Inc.
Description 2: .ABK file extension is linked with AMOS data file. AMOS is a powerful and userfriendly SEM [structural equation modeling] software that enables users to produce realistic models. Compared to standard multiple regression or multivariate statistic models, AMOS is edgier and has more beneficial features. AMOS is also applicable to research applications such as: psychological models, healthcare and medical, education, market, institutional and social sciences. .ABK and AMOS are owned and developed by SPSS Inc.
Description 3: .ABK file extension is linked with Automatic Backup. This is the backup file generated by various applications such as CorelDRAW the best illustration application that has been created initially for PCs and now Macexclusive versions have evolved as well. Its forte is instantaneous live special effects with interactive tools. Users can enjoy the ease of using CorelDraws key features such as: transparency applications, 3D extrusions, gradient fills, drop shadows and distortion envelopes via draganddrop.
File Type:   Backup File
Mode: Binary
Program(s) to Open:  Windows: this file is not meant to be opened; if necessary, the program that originally created it should be used to open it
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