TurboTax supports tax year 2021 thru 2024. Tax year 2021 thru 2023 can only be printed, signed, dated and mailed, they cannot be e-filed.
To complete and file a prior year (2021 thru 2023) tax return using TurboTax you would need to purchase, download and install on a personal computer one of the desktop editions for each tax year required from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
A prior year tax return can only be printed and mailed, it cannot be e-filed using TurboTax. Use a separate envelope for each tax year being mailed.