Add Yahoo as a preferred source to see more of our stories on Google. If you have three or more rows of data, chances are, you'll need to summarize those values in some way. Summarizing is one of the ...

Microsoft Excel’s Subtotal feature is a great tool, but you can make the results even better by customizing the format. Microsoft Excel’s Subtotal feature calculates subtotals and a grand total for ...

Move beyond the basics of sums and averages. These tips open up all kinds of opportunities for working with spreadsheet data. Editor’s Note: This article was originally published in Sept. 2012 and the ...

Excel spreadsheets do so much, from making lists to crunching numbers to acting as sophisticated flat-file databases. We’re creating this guide to make sure you master all the essentials and more.