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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
DAA - Extension Details
Date Added: January 01, 1970
File Extension:  .DAA
Description 1: .DAA file extension is linked with PowerISO DirectAccessArchive. This is the disk image format utilized by PowerISO. It is password protected, compressible, and can be split into volumes. Users can extract, edit and mount compressed DAA files as it is. DAA files open directly. .DAA file extension and PowerISO DirectAccessArchive are owned and developed by PowerISO Computing Inc.
File Type:   Binary File
Mode: Binary
Program(s) to Open:  Windows: PowerISO, Mac: DAA Converter for Mac OS X; Unix: AcetoneISO, PowerISO for Linux
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