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.

Every Excel expert knows how to navigate without a mouse and how to format data using keyboard shortcuts. But do you know how to insert a sum without typing the formula?

Open your spreadsheet in Microsoft Excel. Click the cell where you wish the total sum to appear. Type "=SUM (range1,range2,range3)" into the cell and replace "range#" with a range of data.

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.