MD2

MD2 (Quake 2 model format) is a 3-D modeling format introduced in November 1997 by id Software for the Quake 2 game. It is a binary format using little endian numeric format.

Format description
(several of these are labeled 'specification', but don't seem to actually be official)
 * MD2 file format specification
 * .md2 File Format Specification
 * The Quake II's MD2 file format

Links

 * the quake 2 md2 file format (theory)