Yes. But you don't import it. You just OPEN the .tax2020 file in the program. Go up to FILE - OPEN. So you can't import it into an existing desktop return if you already started one.
You will need to first download any state programs you have in your online return. After you get the program installed the first thing to do before you open your tax return is to update the program and install any state programs you had. Then open your file. So you first might need to start a fake return to be able to download the state program (go to FILE - NEW). Enter some basic information, then go to the state tab and download the state program. Then try to open your existing return, go to FILE - OPEN
