This article was previously published under Q213355
For a Microsoft Excel 97 version of this article, see 142591.
The Microsoft Visual Basic for Applications sample macro in this article finds duplicate cell entries within a column, and changes the color of the cell containing the duplicate entry to red.
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For the macro to work correctly, make sure both of the following conditions have been met:
The column in which you want to find duplicates has been sorted based on values in that column.
The first cell in the column in which you want to find duplicates is selected.
Sample Visual Basic Code
Sub FindDups () ' ' NOTE: You must select the first cell in the column and ' make sure that the column is sorted before running this macro ' ScreenUpdating = False FirstItem = ActiveCell.Value SecondItem = ActiveCell.Offset(1, 0).Value Offsetcount = 1 Do While ActiveCell <> "" If FirstItem = SecondItem Then ActiveCell.Offset(Offsetcount,0).Interior.Color = RGB(255,0,0) Offsetcount = Offsetcount + 1 SecondItem = ActiveCell.Offset(Offsetcount, 0).Value Else ActiveCell.Offset(Offsetcount, 0).Select FirstItem = ActiveCell.Value SecondItem = ActiveCell.Offset(1,0).Value Offsetcount = 1 End If Loop ScreenUpdating = TrueEnd Sub