Hey guys, here’s a quick Tutorial on how to Share Worlds on Minecraft Xbox 360!
Step 1: Transfer your Xbox live profile to a compatible USB stick
Step 2: Open up Horizon with your USB stick plugged into your PC
Step 3: Inject your save into horizon, using Inject button
Step 4: Just to be safe, drag save game out to left and rehash and resign one more time.
Step 5: Have fun with your friends world!
Credit to keven1982 for the save from his thread here,
Not sure if posted, I couldn’t find it, but this is just a video to show how to do it.