I keep running into situations in Excel where I want to calculate a conditional sum, but my criterion is something along the lines of "Include cell B1 if cell A1 is a number, likewise B2 and A2 ...

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

Learn how to use Excel FILTER, XLOOKUP, and SUMIFS functions to streamline workflows and make smarter data-driven decisions.

You might have noticed (Figure C) the AND and OR options in the dialog where you entered the benchmark amount. This option allows you to enter other criteria for the same column—Commission.