» Color Unique Record in a Range in Excel 2007

To color a unique record in a range, use Conditional Formatting:

Option 1:
1. Select the range of cells (or select the entire column).
2. Select Home -> Conditional Formatting (in Styles Group) -> Highlight Cells Rules -> Duplicate Values.
3. Select Unique, and from Values with dropdown list select the format and click OK.

Option 2:
1. Select the range of cells (or select the entire column).
2. Select Home -> Conditional Formatting (in Styles Group) -> New Rule.
3. Select Use a formula to determine which cells to format.
4. In Format values where this formula is true text box enter the following formula (ensure the Absolute and Relative references):
=COUNTIF($A$1:A1,A1)=1
5. Click Format, and select the Patterns tab.
6. Select a color, and then click OK twice.