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 ...

Q. I receive regular spreadsheets with all of our company’s accounts, departments, employees, and balances, and I have to subtotal the amounts by accounts, departments, etc. I have been manually doing ...

Excel's Subtotal command allows you to quickly create subtotals in your sorted data, and then collapse the view to to show only the new subtotal rows.

Adding a condition to a simple revenue sheet might spell trouble in Microsoft Excel, but don't worry--a simple conditional function can handle the request.

Click the Data tab. Click Subtotal in the Outline group. In Excel 2003, Subtotals is on the Data menu. In the resulting dialog, choose Count from the Function dropdown.