I cannot sort by columns on my Mac 2016. It simply crashes Excel.app. I always thought it was strange for such important feature to be crashing.
Today I found out that Apple is patching the APIs that older apps from Microsoft (and many other developer) use. Sounds a lot like what Microsoft did in the last to an extent that it because impossible to maintain and test years laters.
From the long and interesting post:
Microsoft Excel/PowerPoint/Word have a patch in _CFArraySortValues to change the sorting algorithm slightly. How do you break sorting?!
I wonder if it has something to do with that Sierra patch (I’m running High Sierra).