Hello,
I have a workbook that has five worksheets listing warehouse inventory items. One worksheet for 2013, 2012, 2011, 2010 and 2009. In column b of each worksheet is a column B with a heading of "Item Number". There are hundreds of item numbers on each worksheet.

I would like to be able to find and highlight item numbers that appear in multiple years. Preferably color coded showing appears in five, four and three years. If that's too difficult than just items that appear in all five years. I tried conditional formatting, but have been unsuccessful.

Lastly, is there a way to list any duplicate item numbers on a new worksheet.

Thanks so much for our help!
Eric