There is only one file type that uses the .KMA extension:
Correlate Archive File
A KMA file is an archive created by Correlate Client, a tool used to sort files in Windows by creating shortcuts to documents. It contains an archive of a structure of one or more shortcuts to a user's files. KMA files are often used to store links to project, business, human resource, and productivity-related files.
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Updated: September 5, 2017