How to Create a Form Using Microsoft Excel 2007. There are several ways to add forms in Microsoft Excel 2007, without the need to learn Visual Basic and type complex code.

If you need to average a list of values in Microsoft Excel that contain duplicates without including the duplicates, don't fret over a complex expression when you can easily remove those duplicates.

If you wish to count the same or duplicate values in a column only once in Excel or the count of occurances of duplicate values, read this article.

You can't use a SUM() function to sum a filtered list, unless you intend to evaluate hidden and unhidden values. Here's how to sum only the values that meet your filter's criteria.