Must contain a manifest.json file inside the zip.
However, many creators and download sites distribute these packs as standard .zip files to save space or because they were created on different operating systems. While a .zip file contains the same data, Minecraft does not natively recognize it as an importable pack until the extension is changed. how to convert zip to mcpack
Get-ChildItem *.zip | Rename-Item -NewName $_.Name -replace '\.zip$','.mcpack' Must contain a manifest
Consoles don’t allow direct file renaming. You’ll need a PC or phone: how to convert zip to mcpack