You should be able to save the data you've entered online as a tax data file, which can then be uploaded into the TurboTax Desktop (CD/Download) program. See the instructions I'm linking below to do this.
How do I switch from TurboTax Online to the TurboTax CD/Download?
One thing you should know: The online program is the only place you'd need to "login" to your TurboTax account. Once you've installed your TurboTax software to your computer (you'll need the activation code included with your CD purchase) you'll see a TurboTax 2021 icon on your desktop. You can click on that to open the program.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
