Using multiple sheets in the same Excel workbook helps organize data into distinct categories. For example, you might have sales data for each of your four main departments on four separate sheets. If ...

It's easy to add a set of numbers together — every spreadsheet user knows how to use the tried-and-true SUM function to find a total. But what if the sum you're trying to find depends on some sort of ...

You can sum a series of numbers in Microsoft Excel manually by typing in a simple formula, or automatically by using the AutoSum tool in the toolbar on your screen. Both methods will always give you ...