Just start the TurboTax program. Then select New Tax Return in the File menu located in the upper left of the desktop program screen.
If you have the 2021 tax data file on your computer located in the TurboTax folder of the Documents directory, it will be shown in the list for tax returns to Transfer to the 2022 return. If not shown you can browse you computer for the 2021 tax data file, if available.
