Bizaare problem - Excel (2010) on a machine has lost its ribbon & menu (and is hence virtually unusable!). I have tried the solutions I have found Googling (incl uninstalling & re-installing - rebbot between) to no avail. Very starngely after reinstalling the menu/ribbon were STILL not there! Anyone got any bright ideas. Getting desperate now as it's preventing office doing daily calculations etc for dinner money transactions!!