@MAC18 wrote:
Will the current 2022 cd/desktop product open all of my prior year turbo tax files?
No. The current 2022 desktop program will only open current year tax files (e.g., .tax2022).
If you want to open a prior year, such as your 2018 return, you will have to have the 2018 program installed in order to open the 2018 tax file (.tax2018).