Almost every month, I suggest the Subtotal feature to a reader. It's an easy-to-use feature that summarizes data by groups. You define the group and the summarizing function; Excel does the rest. This ...

There's more to Excel's Subtotal feature than you might realize. You can add multiple subtotaling functions to the same row, and you can add multiple rows. You probably know that Excel’s Subtotal ...

Excel's subtotaling feature is a great tool for inserting subtotaling formulas in into your data. The down side is that the subtotal rows are often difficult to discern from the rest of the data.

Enter your data or use an existing data. Type into the cell where you want to place the result =SERIESSUM(A2,0,2,D2:D4). Press Enter to see the result. The result is 0.504711076. There are two other ...

For productivity software, Microsoft Office is not the only game in town. You can download a free copy of OpenOffice and get equivalent programs: a word processor ...