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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
TJP - Extension Details
Date Added: January 01, 1970
File Extension:  .TJP
Description 1: .TJP files are project files created using the open source project management tool known as TaskJuggler. It is a program that helps with managing as well as analyzing resources, costs, tasks, productivity and others. Saved as textual documents that are written in proprietary declarative programming language, each TJP file includes a root project file along with the contents of subfiles found in the main file.
File Type:   Data file
Mode: ASCII
Program(s) to Open:  Unix: TaskJuggler
Common:
Extension: