Just wasted nearly an hour unsharing a file due to Microsoft deciding that everyone does sharing via cloud drives. Didn't help me much as the file was on a drive on the clients server, which I have captured as a virtual drive on my laptop.

So, in doing this Microsoft then, without warning removed the Sharing icon from the Review Tab. After much searching on google,and finding nothing to help, I took a punt at customising the ribbon, and found the sharing command - now called Share Workbook legacy.

When are Microsoft going to realise that the whole world is not going to change the way it works every time they do an upgrade, and why can't they make information easy to find on google to restore 'old' features. It didn't help that the ribbon customisation default is popular which doesn't include the sharing command.