I do a lot of large calculations in Excel that can take a while to complete. If they are especially large, I'll use Boot Camp to give them more resources, but day to day, I like to use Parallels (12) so I can multitask. I'm not sure if this is a Parallels 12 issue, but is there a setting that will let me initiate a calculation and use other apps (Win10 or MacOS) without stopping the Excel calculation?