Thanks for all the responses guys!
I have the desktop version of TurboTax 2017, 2018, 2019. I will purchase 2020, 2021, 2022.
From what I've read here I can amend my 2017 returns even though it is beyond the time limit to get a refund. I am not due any refunds, nor do I owe any taxes after I make the amendments.
