Adding a running total to a simple Microsoft Excel revenue sheet isn't difficult, but adding a conditional running total will require a bit more effort. Solutions are simpler than you might think.

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

The best new tool from Microsoft Excel is undoubtedly the SCAN function. Here's how to use it to calculate running totals. Find the full guide at Spreadsheet Point.

Microsoft Excel PivotTables turn data into meaningful information, but it's difficult to add grand total rows. Read on to learn how.