How do I add more movies and more users to the Microsoft Excel spreadsheet

In lesson 5 there is a Microsoft Excel spreadsheet, how do I add more movies and more users to the spreadsheet?

I want to add movies and users to really understand what is happening when I run solver in the spreadsheet!

I think that I understand how to add movies to the first spreadsheet but I am uncertain on how to add movies and users on the second spreadsheet.

Please anwser and tell me how to add movies and users!