Please note: It’s not possible to transfer a world directly from Minecraft Xbox 360 Edition to the new version of Minecraft for Xbox One. To do this, you will need to first transfer the world to Xbox One Edition and then to the new version of Minecraft.
How do I transfer my saved worlds from Xbox 360 to Xbox One Edition?
You’ll need to ensure you have the latest update for Minecraft: Xbox 360 Edition by starting the game while connected to Xbox Live. The most recent update contains a feature that allows you to upload one saved world at a time to a save transfer slot. You can then use the Xbox 360 save download feature on Minecraft: Xbox One Edition to download that world. You’ll need to make sure you download that save to your Xbox One before you can upload a new save using your Xbox 360. You can do this as often as you like, but you can only transfer one saved world at a time.
How do I transfer my saved worlds from Minecraft Xbox One Edition to Minecraft for Xbox One?
You’ll need to ensure you have the latest update to Minecraft by starting the game while connected to Xbox Live. Choose “Play” and navigate down to the bottom, here you will find a button called “Sync Old Worlds”. Select this button and choose the world you would like to transfer. You can do this as often as you like, but you can only transfer one world at a time.