Spreadsheet Sum (Totals)

Spreadsheet Sum (Totals)

Is there a way to add a row at the bottom of a spreadsheet and a column to the right and set to calculate the totals of the column and row? I see there is a row at the botton of the spreadsheet that calculates the column total but this is not part of the spreadsheet and I cannot see a way to add this at the end of each row.