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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
WPL - Extension Details
Date Added: January 01, 1970
File Extension:  .WPL
Description 1: .WPL is an extension tied to the Windows Media Player Playlist file. It is a playlist of videos or songs that users can play using Windows Media Player. WPL files are useful for creating dynamic playlists. They store a list of references to actual files, but the files themselves are not included Microsoft first introduced the WPL file format in Windows Media Player 9 Series. The auto playlist feature of Windows Media Player 9 Series utilizes .WPL format. It is the default format for playlists saved in Windows Media Player 9 Series and up.
File Type:   Settings file
Mode: Binary
Program(s) to Open:  Windows: Microsoft Windows Media Player 9 or later, Roxio Easy Media Creator Macintosh: Microsoft Windows Media Player 9 or later
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