You can sum a series of numbers in Microsoft Excel manually by typing in a simple formula, or automatically with a tool.

The SUM formula can be applied to a certain number or cells or an indefinite series such as an entire column of data, which may grow or shrink at a later time.

SERIESSUM function returns the sum of a power series based on the formula. Learn how to use the SERIESSUM function in Excel.

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.

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