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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
YAODL - Extension Details
Date Added: April 09, 2008
File Extension:  .YAODL
Description 1: YAODL (short for Yet Another Object Description Language) is the file extension seen on PowerFlip 3D image files. It is described as a threedimensional modeling file format that the PowerFlip application program from Silicon Graphics (SGI) uses; supporting quadmeshes, texture coordinates, NURBS, polygons, object properties, and vertex, object and facet colors.
File Type:   Image file
Mode: Binary
Program(s) to Open:  Windows and Unix: SGI PowerFlip
Common:
Extension: