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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
XPG - Extension Details
Date Added: March 03, 2009
File Extension:  .XPG
Description 1: File extension .XPG has to do with the Autoplay Media Studio Exported Page. These are individual pages that are exported from AutoPlay Media Studio projects. The files may be chosen from a custom application or presentation and are created by going to "Page>Organize>Export within the AutoPlay Media Studio. Insert .XPG files into AutoPlay projects this way: select "Page>Insert and from here, choose an exported page.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Windows: Indigo Rose Autoplay Media Studio
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Extension: