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

Excel’s BYCOL() and BYROW() functions evaluate data across columns and rows, returning an array result set allowing you to bypass a lot of work.

Excel's COUNTIF and SUM functions streamline data analysis, enhancing productivity for users.

How to Do the Sum of an Indefinite Series in Excel. The Microsoft Excel program includes a variety of mathematical formulas that you can apply to any cell in a spreadsheet. If your business uses ...

How to Link Rows Together in Excel. In addition to storing typed data in each cell of a spreadsheet, Microsoft Excel allows you to perform functions on one cell and show the result in another cell ...

If you want to display multiple subtotals in your Microsoft Excel PivotTables, learn how to use a hard-to-find setting.

The bigger your spreadsheet, the more you need INDEX and MATCH functions, which you can combine with SUM, AVERAGE, and MAX to refine your searches.