We have created sample data containing sales of 6 different companies in four consecutive months (from January to April). The Total Sales sheet represents the total number of sales in all four months ...

You can sum up entire columns or rows in Microsoft Excel using the AutoSum feature. The AutoSum tool automatically selects a column or row of numbers, but you can select any set of numbers by clicking ...

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