Sims 3:0x05CD4BB3

Sims 3:Main Page -> Sims 3:PackedFileTypes

Unknown at this time what the purpose of this data is. There is exactly one per world.

DWORD version 1
DWORD count1
DWORD count2
REP count1 x count2
    DWORD offset from the end of this list to matching entry in the next list
REP count1 x count2
    WORD subcount
    IF subcount > 0
        REP subcount
            DWORD offset from the end of this list to matching entry in the next list
        REP subcount
            BYTE subsubcount
            BYTE
            BYTE
            BYTE
            REP subsubcount
                BYTE
                BYTE
            REP subsubcount
                BYTE