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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
ZT - Extension Details
Date Added: July 09, 2008
File Extension:  .ZT
Description 1: .ZT files contain depth maps for 3D models that were created using the highperformance rendering engine for photorealistic image generation, Mental Ray. The .ZT file extension is supported and easily recognized by majority of Autodesk 3D program software. Autodesk 3D applications utilize Mental Ray technology, but the program is also available as a standalone utility.
File Type:   3D Image file
Mode: Binary
Program(s) to Open:  Windows: Autodesk Mental Ray, Autodesk Maya or 3ds Max
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