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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
JPF - Extension Details
Date Added: January 12, 2008
File Extension:  .JPF
Description 1: .JPF file extension is linked with Biz Plan Pro Business Plan Contents. This is the file extension for the business plan contents utilized by Biz Plan Builder a strategicplanningbased business plan program that is recommended by business bankers, investors, entrepreneurs, venture specialists and business planning consultants for financing and organizing your business. .JPF file extension and Biz Plan Builder are owned and developed by JIAN Tools for Sales, Inc.
Description 2: .JPF file extension is linked with JPEG 2000 Image. This is the successor of JPEG image format. This file incorporated lossless or lossy file compression, metadata information and image transparency. .JPF file extension is also associated with NERO the bestselling multimedia suite which allows users to easily manage and organize multimedia files.
File Type:   Bitmap Image File
Mode: Binary
Program(s) to Open:  Windows & Mac: NERO
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