If PACK 64.7z is a custom archive you've encountered, the standard way to produce its content is via 7-Zip : : 7z x PACK 64.7z -o./OutputFolderName
Do you have a or source where you downloaded this file so I can provide more tailored instructions? PACK 64.7z
If your file is named app-64.7z (often found within Joplin Portable installers), you can produce a fully functional "truly portable" app folder by following these steps: If PACK 64
: Right-click the file and select "Extract to 'PACK 64'" . PACK 64.7z