If Excel is not highlighting cells in the formula, enable 'Allow editing directly in cells' and 'Enable fill handle and cell drag-and-drop' in Excel options.

If the ERROR.TYPE function in Excel not working for you, ensure the formula is correct, check for errors in the referenced cell, or repair Excel.

Excel has over 475 formulas in its Functions Library, but we've selected the most popular, from date and time functions to mathematics and simple data manipulation.

How to Convert DOB to Age in MS Excel. Microsoft Excel provides a function that displays a person's age based on his date of birth. In your business, this function can help you keep track of your ...

Summarizing data is a common task in Excel, and there's usually more than one way to do so. Susan Harkins explains three ways to return averages for multiple groups.