Have you paid for Online yet? If you can't finish in time you need to switch to the Desktop program. If you are getting a refund you have 3 years to file and there is no penalty. So be sure to save your return as a .tax2021 file before online shuts down soon after Oct 15.
If you already started in the Online version you can move your return to the Desktop program even without paying for Online. If you already paid for the Online version you can contact them to give you the program download.
First download the .tax file from the Online version,
https://ttlc.intuit.com/community/saving/help/how-do-i-save-my-turbotax-online-return-as-a-tax-data-...
Then see, How to Switch to Desktop,
https://ttlc.intuit.com/community/choosing-a-product/help/how-do-i-switch-from-turbotax-online-to-th...
After you get the program installed the first thing to do before you open your tax return is to update the program and install any state programs you had. So you first might need to start a fake return to be able to download the state program (go to FILE - New)
Then you just OPEN the .tax2021 file, go up to File-Open. You don't import or transfer it.
