yes the tax file used in 1040 desktop programs can be used by other 1040 desktop programs but not online ones
you CANNOT transfer the file from desktop to online.
the xxxx.tax2022 file must be on the same computer as the tax2023 app. Then you start a new return a window will open that might display the 2022 file. if not browse for where you put it. highlight the return and then open it. it should show the data being transferred. seeing "Transfer Complete" means you were successful
