The 'Windows Settings' window should appear. Click on the Windows 'start' icon (bottom-left corner of your screen).The instructions for this depend on which version of Windows you're using: Windows 10 Follow through the instructions until your version of Office has been updated with all the latests patches and service packs (e.g.Visit the Microsoft Update page for instructions on how to run Windows update on your particular machine (typically via 'Windows Update' in the Windows Control Panel).Make sure that Excel is closed (ideally you will have rebooted your computer so that Excel hasn't even been opened yet in your current Windows session).This should be the same process as updating Windows, as Microsoft has merged the two: It's best to reboot your computer before starting an update or repair, to reduce the chances of a running program preventing files from being repaired or replaced. Updating and repairing Excel will often fix things.įollow the steps below – first update, then repair. If an Excel add-in is acting peculiarly (or not at all), it's often because Excel is broken in some way.

Excel 2013 to 2016 compatibility