A hkm file extension is related to the Havok Visual Debugger. A hkm file stores movie or 3D animation.
HKM file extension - Havok movie
What is hkm file? How to open hkm files?
File type specification:
The hkm file extension is associated with the game development software called Havok.
The hkm file contains movie or 3D physics animation. This file can be opened by Havok Visual Debugger.
This hkm file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.