To amend a prior year tax return (2020 thru 2022) you must have the TurboTax desktop software for the tax year you need to amend so that you can open the tax data file you downloaded.
Go to this TurboTax website to purchase and download the prior year desktop software - https://turbotax.intuit.com/personal-taxes/past-years-products/
With the TurboTax software downloaded and installed and the tax data file opened -
Click on Federal Taxes
Click on Other Tax Situations
Scroll down to Other Tax Forms
On Amend a return, click on the start button
