Software

10 creative uses for Excel's conditional formatting feature

Distinguish business rule violations

As you can see here, working with the time values complicates things a bit. This solution uses >.34 to represent time values greater than eight hours, which will work in most cases -- you can't use the value 8 or even the time value 8:00. You can also use the predefined Greater Than rule in Excel 2007 and 2010, which will automatically use the more accurate value of 0.333333….

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Susan Sales Harkins is an IT consultant, specializing in desktop solutions. Previously, she was editor in chief for The Cobb Group, the world's largest publisher of technical journals.