In Minecraft, a “.world” file is a file that stores all the data for a world, including the terrain, structures, and entities. To get a “.world” file, you can either create a new world in Minecraft or download one from the internet.
To create a new world in Minecraft, simply open the game and click on the “Singleplayer” button. Then, click on the “Create New World” button and enter a name for your world. You can also choose the world type, game mode, and other settings. Once you have created a world, you can find the “.world” file in the “.minecraft/saves” folder on your computer.