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.

How to Sum Across Worksheets in Microsoft Excel. Using multiple sheets in the same Excel workbook helps organize data into distinct categories. For example, you might have sales data for each of ...

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

To sum a Column in a Microsoft Excel spreadsheet, you can use the AutoSum, the Status Bar, and even the Sum function to calculate values in one or more columns as explained below. One of the ...

You can sum cells across multiple sheets in Excel. This article presents steps for Adding single-cell values or Adding values in the range of cells.

Hi everybody: I need to summarize phone calls in Excel to prove how many hours, mins and seconds I spent on the phone for something. I'm a very basic Excel user, so please spell it out for me. DAT ...

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.

A formula in Excel always begins with an equal sign (=), indicating to Excel that the following expression is intended for calculation. For instance, if you want to sum the values in two cells ...