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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
VDF - Extension Details
Date Added: February 09, 2008
File Extension:  .VDF
Description 1: .VDF is the file extension identifying plugin files for the video capture and editing program VirtualDub. The plugin files provide extra features like additional VirtualDub file support and special effects. Users can load VDF filters into VirtualDub by hitting the "Load button found within the Add Filters dialog box. Filters are automatically loaded if VDF files are put in the plugins folder, under the VirtualDub program folder.
File Type:   VirtualDub Video Filter
Mode: Binary
Program(s) to Open:  Windows: VirtualDub
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