MAPW (File Format)
The MAPW format defines the map for a world, which is basically just a list of MAPA files.
MAPW is essentially just an array of MAPA IDs. There's always one MAPA per area. The MAPW format has never been updated; every Prime game uses the same version of the format, version 1. The only difference is that Prime 1/2 have 32-bit file IDs, while Prime 3 has 64-bit ones.
|0x8||u32||1||Area Map Count||Count of MAPA files in the next array|
|0xC||Asset ID||Area Map Count||Area Map Array||Array of MAPA asset IDs|
|End of file|