SUMIF is one of the most crucial functions in the Microsoft Excel tool belt. You'll use it to automatically add together data entries based on the criteria of your SUMIF command, saving you from ...

How to use AutoSum in Excel. AutoSum works best when you have a column or row of numbers you want to add up. 1. Click the empty cell underneath the column of numbers that you want to add up.

2. Using the Sum Function with Multiple Ranges. You can also use the SUM function to add multiple ranges of cells together. This is useful when you have different subsets of data that you want to ...