Assuming you used the online 2018 product to prepare your tax return, you don't need a CD to open the .tax return. Here is how to access it:
To get back into your return after printing or e-filing, please follow these steps:
1. In TurboTax Online, sign into your account.
2. Select Tax Home in the left menu.
3. Scroll down to Your tax returns & documents.
4. Select 2018, and then select Add a State (You're not actually adding a state, this just gets you into the right menu).
5. Once you're in your return you can navigate around as usual.
