Sometimes, maps are compressed as .zip files. If you rename a map to .mcpack , it will fail. Maps should remain as .zip or be extracted into your Minecraft world_templates folder.

An .mcpack file is a compressed archive specifically designed for Minecraft Bedrock (the version of the game available on Windows, iOS, Android, Xbox, and PlayStation). When you double-tap or click on a .mcpack file, Minecraft automatically detects it, boots up, and installs the add-on directly into your game files without you having to manually drag and drop folders. Method 1: The Manual Renaming Method (Windows PC)

: Delete the .zip suffix and type .mcpack in its place.

The most common hurdle on Windows is that file extensions are often hidden by default. : Open File Explorer .

Windows naturally hides file extensions (like .zip or .txt) by default. You must make extensions visible before you can change them. Step 1: Reveal File Extensions

An .mcpack file is not a unique, proprietary file type. It is simply a standard .zip archive that has been renamed with a specific extension that Minecraft recognizes.