If you downloaded the 2023 tax data file, which has a file extension of .tax2023, that can only be opened by the 2023 TurboTax desktop software.
Download the PDF of the 2023 tax return, it can be opened by any compatible PDF viewer.
To access your prior year online tax returns sign onto the TurboTax website with the User ID you used to create the account - https://myturbotax.intuit.com/
Start the 2024 online tax return by entering some personal information then click on Tax Home on the left side of the screen.
On the Tax Home webpage -
Scroll down to the section Your tax returns & documents. Click on the Year 2023 and Click on Download/print return (PDF)