Backup and Restore of Projects

Backup and Restore of Projects

Hi Guys,
my boss asked me "do we store regulary offline Backups of Zoho Projects" and i could only answer "no way".
Is there really no way to backup and restore a project manualy?

As Projects is the main Product we decided to use Zoho it could be that they will kill me if i dont get a solution for this...

Thanks Wolf.
P.S. I can save xml backup but for what i can use it if i can not restore it inside Zoho Projects?