@RL_Dane @resuna @sotolf @benjaminhollon @al3x I'm going to stay out of it this time, other than to say that I have 4 Excel windows open across 2 monitors running in a Win8.1 VM on Fedora, because in spite of my stance on running Windows, I spent the last couple months without Excel, trialling alternatives, and ended up right where I started (except now with the added suffering of Win8).
Sidenote: why did I ever use VirtualBox? VMware has been far less painful.