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.

When counting unique values in Microsoft Excel, use UNIQUE() as a helper function and avoid more complicated expressions.

Data forms provide an alternative option for data entry in your Excel spreadsheet. Instead of scrolling from right to left in a wide row of fields, use a data form to view one record at a time.

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.

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.