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.WM File Extension

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File TypeWindows Media File

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Rare Uncommon Average Common Very Common
CategoryVideo Files


This file is saved in a binary format, which requires a specific program to read its contents.


Windows Media audio or video file; may contain audio, video, or both types of data; formatted using the Windows Media Player codec.

More Information

The WM extension is a simplified file extension that can be either a .WMA (Windows Audio) or .WMV (Windows Video) file. The WMA and WMV files are more specific and are used more commonly than the WM extension.

Programs that open WM files
Microsoft Windows Video
Microsoft Windows Media Player
Digital Cloud Technologies Media Player
J&ASoft Music Player
Updated 10/1/2014