Tom’s Tutorials For Excel: Conditional Formatting examples for repeated items in a list.

Tom’s Tutorials For Excel: Conditional Formatting examples for repeated items in a list.

The Conditional formatting rule for unique entries in range A3:A14 is
=COUNTIF($A$3:$A$14,A3)=1

The Conditional formatting rule for non-unique entries in range B3:B14 is
=COUNTIF($B$3:$B$14,B3)>1

The Conditional formatting rule for repeated entries in range C3:C14 is
=COUNTIF($C$3:C3,C3)>1