Sorry they only support the last 3 years. And the License Code started in 2019. So 2019 to 2021 needs to connect to Turbo Tax to verify the License Code and to update the program and download any state programs you need. So you can’t install and activate 2021 and prior (then add a year going forward).
If you have the file ending in .tax2019 etc. you could try the TaxPrinter service to convert a .tax file to pdf at
https://www.taxprinter.com
They might be expensive and it is probably not safe to email tax returns back and forth. They are not related to Turbo Tax.
