To open your 2020 tax returns, the files you need are your tax return data files. You have to copy the data files from the old computer to the new computer. The data files for 2020 tax returns have a file name extension of .tax2020. The default folder that they would be in is Documents\TurboTax, but you could have saved them in another folder. If you can't find them, search the entire hard drive on the old computer for *.tax2020.
TurboTax will not automatically find tax return data files that it did not save on the same computer. To open a .tax2020 file that you copied from the old computer, navigate to the folder that you copied it to and select the file.
