There's a ghost in your Excel spreadsheet. It's that invisible text box you keep accidentally clicking, or the chart that refuses to be selected. Instead of losing your mind, use the Selection Pane, ...

The Data Validation feature in Excel 2013 offers a List option to confine selections in a cell to a preconfigured series of values. This selection can further influence the values in another list by ...

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

It's time to dump the pie charts and move to donuts or even waterfalls to show off your data in ways people can better grasp. Have you noticed that people groan when you pop open a spreadsheet to ...