SUM is the spreadsheet equivalent of an open invite: it welcomes everything into the total, whether it belongs there or not.

Select the cell in your Microsoft Excel document that you would like to use for the sum of squares function and open the "Formulas" tab.

Unlock the full potential of Excel's SUM function with advanced techniques for data analysis, conditional counting, and more.

Some benefits to using GROUPBY over a PivotTable are that it is formula-based, it updates dynamically, and it is easy to use in reports (it does not require setup). In cell G1, enter the GROUPBY ...