@Kimberly84 - To access the 2017 online tax return you will need to upgrade to the 2018 Plus edition and pay for the Plus edition before access to the prior year online returns is available.
In TurboTax Free Edition, you can purchase PLUS to unlock your prior-year .tax file.
The exact instructions will vary depending on the status of your 2018 TurboTax Online return (select one):
