This uses the same header as WLW however the version is 1.6 of the format (0x10006).
Type Name Descrition char * 4 id always *QIL uint16 unk ? uint32 unk always 6? uint32 nChunks number of chunks in the file
Following the header are nChunks 360 byte blocks ( see WLW ), followed by 4 - 5 unknown bytes