Well if you transfer from the wrong 2024 tax file you can just start a new return and transfer from another file. When you start a new return it will first try to find all the .tax2024 files on your computer. You can pick which one to transfer.
Oh and you should be saving your returns each year after the return is Accepted so it has accepted info on it. You might want to open your 2024 return in the program on the Windows 10 computer and check the filing status and save it.
Open your return and go up to menu item File, in Windows the first menu item on the Left.....
File > Electronic Filing > Check Electronic Filing Status
Then save your return with the status. Go to File-Save.
