Leaderboard

Hello, I've got finally some time to play with my Xbox 360 RGH again. I wanted to play Rayman Legends with every costumes that has been released for the 360 version of the game. In order to do this, I've found a save game with Uplay rewards unlocked and preorder bonuses but, unfortunately, I can't play with this save. I have copied that file with Horizon on my external HD, the save game is detected by the console but I can't use it with my profile. Do you know if I have to do something in order to "connect" the save to my profile? I've never tried other users' save data. Thank you in advance, I hope that someone can help me!