: Open Minecraft and look for the new world in your Singleplayer list. Common Issues
: Drag the extracted folder (ensure you see subfolders like region or DIM1 inside it) into the saves or minecraftWorlds folder. 1-9_to_1-14.zip
Knowing the source can help determine if there are specific conversion steps needed. How To Download & Install Minecraft Maps in Minecraft 1.19 : Open Minecraft and look for the new