What is .M3 file extension?
.M3 file extension is a known file type. This section tells you everything you need to know about this extension.
3D model used by StarCraft II: Wings of Liberty, a sci-fi real-time strategy game; created in Blizzard's MDX3 format, which is the successor to the .MDX file format used in Warcraft 3 and the .M2 format used in World of Warcraft; used for storing models for game units and structures for the Protoss, Terran, and Zerg races; also used for other game objects.
M3 files are commonly found within in .SC2ASSETS files, which are stored in Blizzard's .MPQ format.
You can see a list of software programs below that can open this file type so that you don’t need to search for it on the web. You can then open your file with this extension using a software listed below.