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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:
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IFF - Extension Details
Date Added: January 01, 1970
File Extension:  .IFF
Description 1: .IFF file extension is linked with Bitmap Image. This is the file extension that is utilized by various applications and graphic programs for their bitmap images. .IFF is also associated with XnView a utility for converting and viewing graphic files with the following features: imports around 400 graphic file formats, exports around 500 graphic file formats, multipage TIFF, animated GIF and ICO support, EXIF autorotation support, IPTC editing, resizing, cropping, lossless rotate and crop support, and many more.
Description 2: .IFF file extension is linked with Electronic Arts Bitmap Image. .IFF stands for Interchange File Format, which is a generic file format introduced by Electronic Arts in 1985 with a collaboration with the CommodoreAmiga group. .IFF files were developed with the purpose of easing the transfer of data between software from various companies.
Description 3: .IFF file extension is linked with Autodesk Maya Image Format. This is the file extension for the bitmap image utilized by Autodesk Maya an awardwinning application that integrated 3D modeling, rendering and animation. The latest Autodesk Maya software [Autodesk Maya 2008] offers faster and more efficient tools for creating highresolution characters, performances and environments that are used for game consoles, television images and theater screens.
Description 4: .IFF file extension is linked with Amiga IFF Graphic. This is the bitmap graphic file format which is developed by Electronic Arts [EA] and used by Amiga Systems. It is similar to .BMP file but utilizes different formatting. .IFF file extension was originally named EA IFF 1985. The standard format of .IFF file is supported by various programs and the file opens directly.
Description 5: .IFF file extension is linked with The Sims Data File. This is the file extension for the object or data file utilized by The Sims an interactive 3D game were players can create, manage and control the lived of the miniature characters in the game. .CMX file extension and The Sims are owned and developed by Electronic Arts Inc.
File Type:   Game file
Mode: Binary
Program(s) to Open:  Windows & Mac: The Sims
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