Mike

With xl2003 it has to be done with VB. Here's one way, you have to select
the range then run it.

Sub TestColor()
Application.ScreenUpdating = False
x = Selection.Cells.Count
For Each c In Selection
c.Select
If Selection.Interior.ColorIndex = 6 Then
Count = Count + 1
End If
Next
Application.ScreenUpdating = True
MsgBox Count & " coloured cells"
MsgBox x - Count & " Non coloured Cells"
End Sub

Regards
Peter

"Mike K" wrote:

Within an existing worksheet I have a column of data containing cells that
are either highlighted in yellow (manually highlighted) or not highlighted in
yellow. I need to sum how many cells are highlighted in yellow and how many
cells are not highlighted in yellow. I'm running MS Office Excel 2003 SP2.