Starting with FIFA 17 , EA migrated to the Frostbite Engine . Frostbite uses completely different container formats ( .toc , .cas , .fbmod ). The legacy RX3 Editor only works for FIFA 07 through FIFA 16 , and Madden 08 through Madden 16 . For modern games, you need Frosty Editor (which includes a limited RX3 fallback parser).