I need to open a 2020 tax filing to amend. My 2020 version installed wont open

[SPYAC]

I need to open a 2020 tax filing to amend. I have it saved as a tax file. My 2020 version installed won't open. I don't see a way to open it from my 2021 version. I have the 2020 software on the PC and could reinstall but dont have the license or activation code. How can I open this to amend?

[DoninGA]

Only the 2020 TurboTax software can open the 2020 tax data file so you need to reinstall the 2020 software.

See this TurboTax support FAQ for the license code - https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-system-requirements/find-license...

[SteamTrain]

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@SPYAC wrote:

.................. I don't see a way to open it from my 2021 version............

This part of your post is confusing.  Are you really trying to open a 2020 file using 2021 software?...or was that a mis-type.