Still Before You Begin... Try it: Open the Sample Spreadsheet Open the spreadsheet you downloaded: Sales 2013 Original Data.xlsx Go to the Original Data spreadsheet.   What Do You See? The fields in the Header Row are Month, Client, Category, Service, Product, Date, Sales Rep and Amount. and Revenue.   What Else Do You See? The Developer Ribbon is shown In the example on this page.   Keep going... Memo to Self: You do not have to MATCH the numbers shown on these pages. It is more important that you begin with some data and understand the options. File ->Open