by David Ringstrom,CPA
In a previous article I explained how you can use Conditional Formatting in Excel 2007 and later to highlight duplicate values with just a couple of mouse-clicks. Although easy to implement, this technique identifies all instances of a duplicate value. A reader then asked how to format only the second and any subsequent instances. In this article I'll explain how, along with instructions on identifying duplicate values in Excel 2003 and earlier.
Let's say that we have a list of names, such as shown in Figure 1. Our goal is to highlight the second and any subsequent times that a name appears more than once on a list. To do so, we'll select the names, and then carry out these steps:
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About the author:
David H. Ringstrom, CPA heads up Accounting Advisors, Inc., an Atlanta-based software and database consulting firm providing training and consulting services nationwide. Contact David at email@example.com or follow him on Twitter. David speaks at conferences about Microsoft Excel, and presents webcasts for several CPE providers, including AccountingWEB partner CPE Link.