: Right-click only on the first file ( FIFA21.part1.rar ) and select "Extract Here" using software like WinRAR or 7-Zip.
: The extraction software will automatically pull data from part4.rar and all other parts to recreate the full game folder. FIFA 21 PC System Requirements FIFA21.part4.rar
You cannot open or use part4.rar by itself. To successfully extract the game: : Right-click only on the first file ( FIFA21