As of January 2023 the functionality to import QBO files into QuickBooks desktop is no longer working and trying to import QBO files just caused QuickBooks to hang.  Notwithstanding that this process should have been automated by now and there is no excuse for not having done so, the fact that the QBO file import function no longer works and has not yet been fixed is totally unacceptable. I am giving this one more week and then, after 20+ years of being a QuickBooks user (and frustrated many times by poor functionality and awful customer support), I am going to migrate to a product that actually works.