I got it to work. Here's the deal. The saved file in MacIntosh is not labeled .tax or .taxfile or .tax2021. That is a Windows thing only. The program is saved within the desktop icon program.
For Mac, when you get the window in TT asking you to import, you import that file (labeled YourName.2021). Then everything works fine. But if you try to search for .tax, .tax2021, etc., you get zero. So the problem is a Windows/Mac dichotomy.
I still think Turbo Tax needs to explain this in their save window at the end, along with how to save the .pdf version for printing.. They need to explain that to migrate last year's program into the next year's with Mac, you use the above method, and don't use .tax or .tax2021, etc.
