Data for the Overworld, Nether, and End dimensions.
Drag the extracted world folder into this "saves" directory. Minceaftbackup.7z
To use this backup, you must extract its contents back into your game's directory. Tools like 7-Zip are highly recommended because they can handle the .7z format more efficiently than standard Windows compression. Data for the Overworld, Nether, and End dimensions
Right-click the .7z file and choose "Extract Here" or "Extract to [Folder Name]" using 7-Zip. Locate your "Saves" Folder: Data for the Overworld
Press Win+R , type %appdata% , and navigate to .minecraft/saves .
Critical metadata that determines the world seed and game settings.
The world should now appear in your single-player menu. Why use .7z for Minecraft? How to BACKUP your Minecraft World! 1.21.4 (Java Edition)