There is only one file type that uses the .WMO extension:
World of Warcraft World Map Object
File format used to store 3D object data for World of Warcraft, an online multiplayer adventure game; commonly referred to as a "world map object" or WMO; may be saved as a root file or a group file.
Root files list textures (.BLP files), materials, models (.M2 files), groups, and other data. Group files contain the actual 3D model data for a single unit in the WMO.
|Blizzard World of Warcraft||Commercial|
Updated: November 20, 2009