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Rename the file extension to .pdf
You need the 2018 tax data file, which has a file extension of .tax2018, to transfer to the 2019 TurboTax desktop tax return, not the PDF.
To access your current or prior year online tax returns sign onto the TurboTax website with the userID you used to create the account - https://myturbotax.intuit.com/
Scroll down to the bottom of the screen and on the section Your tax returns & documents click on Show. Click on the Year and Click on Download .tax file
