Files that contain the .met file extension are most commonly associated with the eMule and eDonkey2000 P2P file sharing applications. These applications allow users to share files over the Internet, including movie and music files and software applications.
When the eMule and eDonkey2000 applications store cached information, the cached files are saved using the .met file extension.
Both the eMule and eDonkey programs discontinued support after being threatened with legal action by the RIAA.
The .met file extension is also used by the Corel WordPerfect Macro Editor. The Macro files created in this program are saved with the .met file suffix.
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If you have additional information about the MET file format or software that uses files with the MET suffix, please do get in touch - we would love hearing from you.