Minecraft wiki entry for Moving_structures_using_structure_blocks_from_world_to_world, associated text: In order to start, you need to access your game world file in the .minecraft folder. In order to do that, press the windows key and "R" together to open run, from there you can type in "%appdata%\" and click the .minecraft folder (copy %appdata%\ and paste it in run). It will be a good idea to pin the .minecraft folder to Quick Access in File Explorer so you can access it more easier.