@Dodge_bob You need the file ending .tax2020 to transfer into the program. Or .tax2021 to OPEN in the program. What are you trying to do? Transfer or Open? Where did you prepare the file? Are you trying to move from the Online version to the Desktop program? You need to download the .tax2021 file/
The tax files (and PDF files) should be in your Documents then in a Turbo Tax subfolder. If you can't find them do a search for all files ending in .tax or .tax2020 or .tax2019, etc. And check the Recycle Bin. For Windows 10 check the One Drive. Did you make any backups? Like DropBox.
If you don't have the main .tax file you might have one that starts with a Tilde sign ~ like "~your name.tax2020". That file is if your computer crashes or your real file gets lost or deleted or corrupt so you can restore it.
Find your Tax file in Windows
https://ttlc.intuit.com/community/tax-data-file/help/find-your-tax-data-file-tax-file-in-windows/00/...
