TT2017 tries to open my 2016 return, which it transfered to 2017 format, as a new 2017 return. How do I open 2016 as I originally filed it?
In order to open your 2016 return as it was filed, you'll need to do so in the 2016 TurboTax software. More details on this can be found here How do I open my tax return in the TurboTax software I installed?
You can find that 2016 TurboTax software here Prior Year TurboTax Software if you don't have it already.