How do I add a row in a Table

I am trying to add a row into an extg. table but can't get this to work as suggested in Help. I click the Table but don't see all the extra bits as shown below from Help. I also can't select cells.

If I click the table I do get the table tools in the ribbon but they don't do anything. I could have done this in excel which would have been easier but thought I would try tables!!

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