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

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.

Freezing a row in Microsoft Excel or Google Sheets can organize your spreadsheet and make sorting through data a breeze. Here's how to do it.