If you're looking to transfer or backup your save files, you'll need to access the Xbox 360's file system. You can do this by:
Are you looking to or are you trying to mod your existing progress with specific cars and credits? How to Transfer & Resign Xbox 360 Game Saves Forza Horizon 2 Xbox 360 Save Game
: Save files are not compatible between the Xbox 360 and Xbox One versions. They are treated as entirely different games by the hardware. If you're looking to transfer or backup your