There are different ways of installing a package file depending on your particular circumstances. If you have difficulty with one of these methods, then simply try another.
- Alternative 1: Unpack the package file on your local computer then use an FTP client to upload them to your site.
- Alternative 2: Use an FTP client to upload the package to your site, then use a terminal session (eg. SSH) to connect to your site and unpack the files there.
- Alternative 3: If your hosting provider gives you access to your site via some sort of web control panel like CPanel or Plesk, you can use the control panel file manager to upload the package, then use a terminal session (which might also be available via the control panel) to unpack the package file and overwrite all changed files on the server.