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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
GIF2 - Extension Details
Date Added: May 10, 2008
File Extension:  .GIF2
Description 1: .GIF2 file extension is linked with NetObjects Fusion Style Lines File. NetObjects Fusion is a website design application which offers developers and designers a draganddrop experience. Users can quickly layout texts, objects and images exactly where they want it on their page. It also allows users to easily develop Ajax userinterfaces with the use of CSS, XHTML, XML and JavaScript. NetObjects also offers users to add dynamic content to their websites by allowing them to databind objects to RSS feeds or database. .GIF2 file extension and NetObjects Fusion are owned and developed by NetObjects.
File Type:   Document File
Mode: Binary
Program(s) to Open:  Windows & Mac: NetObjects Fusion
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