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)
The file is a compressed archive containing a backup of a Minecraft world or server, created using the 7-Zip utility . While the name contains a small typo ("Minceaft" instead of "Minecraft"), it follows the standard practice of using high-ratio compression to protect large game files from corruption or data loss. What is inside Minceaftbackup.7z? Minceaftbackup.7z
Inventory contents, XP levels, and spawn points for all players. The world should now appear in your single-player menu
Press Win+R , type %appdata% , and navigate to .minecraft/saves . Inventory contents, XP levels, and spawn points for
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:
This archive typically holds all essential data required to restore a specific state of your game: