.XMI File Extension

File created in the XMI (XML Metadata Interchange) format, an XML file format most commonly used for exchanging UML diagrams; stores model design information in a standard XML format; used for transferring design information between software programs.

Variation of a standard MIDI file that contains "time quantized" MIDI information; each note is exactly in sync with a certain beat, such as 1/16, 1/32, or 1/64; XMI files are usually a little smaller than a regular .MIDI files since they do not need to store as much timing information.