.XMB File Extension

Stores data used by different scenarios in Age of Empires, a real-time strategy game; may include level data, sounds, and other information; saved in an XML format and often ends with a "*.xml.xmb" extension.

XMB files are typically stored in the "C:\Program Files\Microsoft Games\Age of Empires III\data" folder.

Data file used by X-Wing, a 3D spaceship simulation game released in the mid-1990s by LucasArts; contains information displayed during the briefing of a specific mission.