"Protect selected cells with XLS Padlock" not on menu

When I right-click in workbook, the Excel menu does not show the XLS Padlock options to protect cells.

Do you see the “XLS Padlock” ribbon? Could you take a screenshot of your popup menu when you right click?

Yes, I can see the ribbon. Screen shot attached. I am using a trial version at the moment.

Could you try these steps: