The answer is correct. All you needed is provided in the section - "If you used the TurboTax CD/Download software last year"
You can transfer last year's tax data file (with a filename extension .tax2017) if you're preparing your 2018 return online in TurboTax Live Basic, TurboTax Deluxe, TurboTax Live Deluxe, TurboTax Premier, TurboTax Live Premier, TurboTax Self-Employed, or TurboTax Live Self-Employed. (Free Edition, with or without PLUS, doesn't support transferring last year's .tax file.)
You won't be able to transfer a PDF, it must be a tax data file with a filename extension .tax2017.
Remove any password protection from the data file before transferring. Instructions
Note: If you already started your 2018 return in TurboTax Online, transferring will clear any info you have already entered. Please keep in mind, a .tax file from a previous year will not transfer if the file is password protected.
Here's how to transfer:
You have to use TurboTax Online on your computer to do this transfer (it won’t work from a mobile device/mobile web, or in the mobile app).
Sign in to TurboTax Online and start a new return, or continue a return you already started by selecting the Take me to my return button.
After the screen has loaded, select the TaxTools drop-down menu in the left-hand column, and then select Tools.
In the pop-up window, select the Transfer last year's TurboTax return from your computer link. (If you don’t see this option, you may need to Clear & Start Over.)
Follow the on-screen instructions to finish transferring your file.
