The diameter of the Minecraft world is 3.6e308, or 3.8e292 LY(Light Year), meaning that the Minecraft World is 4.2e281x longer than the Observable Universe.
Select the “Open to LAN” button, customize multiplayer options, then lastly select “Start LAN World” in the lower left corner, and a 5-digit LAN number will.
Go to your game menu and press "Open to LAN". Next, it will show your IP address. Write down the IP address, and go back to the title screen and click on.
Hit the start button on the controller. Down near the bottom are two buttons: "Save"; "Exit". If you hit Save, the world will save and return you to that same.