What years? For prior years you need to buy the Desktop program for each year. They only sell the last 3 years. You have to file each year separately.
How to prepare a prior year returnhttps://ttlc.intuit.com/community/using-turbotax/help/how-do-i-prepare-a-prior-year-tax-return/00/25984
To do a prior year return you have to buy the Desktop program here,https://turbotax.intuit.com/personal-taxes/past-years-productsYou will need a full Windows or Mac to install it on.
For information on filing prior year tax returns, click here. You are currently able to file back taxes for 2021, 2022, and 2023 using TurboTax Desktop.