Previous Turbotax returns were completed on a Win7 PC. This year I bought a Win10 laptop. What files will I need from my old PC to my new PC to transfer info in TT2020?

I would like TurboTax 2020 to populate most of my information from previous year's returns I completed in TurboTax.   Which TurboTax files will I need to copy so that I can use TurboTax 2020?