Desktop file another return

I’m going to file another return on my Windows program. Her Mac is too old to install Turbo Tax. Hopefully I can copy the .tax2024 file from Mac to my laptop and transfer it. Hope I don’t have the Mac transfer problems that a lot of people are having.

Then should I or do I need to go to File - Sign In to her account? Or just use her account when filing and paying for state efile? And for email? I don’t remember does it ask for the email at the end when you file. I don’t want to get her emails.

Also we import her 1099 forms. I don’t import any of mine. So to import I’ve read you now have to sign into your Turbo Tax Online account? Do I sign into hers at that point? Will it ask to sign in then?