Learn how to use basic Formulas for mathematical operations & insert Functions like sum, average, count, max, min, date, time, etc. in Excel.

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. Click on the "Insert Function" button and type "sumsq" into ...

How to Enter Formulas in Excel If you're relatively new to Excel, entering a formula is quite easy, even if you have a lot of data.

Every Excel expert knows how to navigate without a mouse and how to format data using keyboard shortcuts. But do you know how to insert a sum without typing the formula?

You can't use a SUM() function to sum a filtered list, unless you intend to evaluate hidden and unhidden values. Here's how to sum only the values that meet your filter's criteria.