There are several methods in this link

http://www.cpearson.com/excel/Duplicates.aspx


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Regards,


Peo Sjoblom



"Daniel - Sydney" wrote in message
...
Hi

I have Excel 2003.

I have a spreadsheet where column C has over 3,000 item codes, some of
these
are repeated, some more than once.

How do I highlight the codes that are appear more than once in the column.

thanks