At work OH uses everything Microsoft, but carries on with same work including editing research articles and theses at home, on his Mac laptop. I will ask him what he uses for compatibility tonight. His previous collection of six Microsoft laptops were a pain in the neck, little Mac laptop never lets him down and doesn't give him an excuse to buy yet another computer. My IMac is getting on in years and never had a problem, because they design all their own programmes to work together. Then of course you synchronise your iPad, iPhone etc to to share everything you want.