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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
JNT - Extension Details
Date Added: May 10, 2008
File Extension:  .JNT
Description 1: .JNT file extension is linked with Windows Journal Note File. Windows Journal is an application that allows users to view the files they have created, handwritten and organize in MS Windows Journal run on a nonWindows XP Tablet PC Edition. JNT file extension is also associated with Free PDF Converter from Baltsoft Software. .JNT file extension and Windows Journal Viewer are owned and developed by Microsoft Corp.
File Type:   Document File
Mode: Binary
Program(s) to Open:  Windows: Windows Journal Viewer
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