Today Iwent back from 2018 Qwin de Luxe to 2017 Qwin de Luxe
The 2018file loaded without problems in 2017, including the changes I made in Qwin 2018.
Firstremove Quicken 2018 and install 2017.
Forinstructions look here:
I can't state this for fact, but from what I've read, NO. You would need to have a v2017 file that has not been opened in 2018.
Can you continue to run Quicken for Mac 2016 once you upgrade to 2018?