Chip Pearson has lots of info about working with duplicates at:
http://www.cpearson.com/excel/duplicat.htm

Betsey wrote:

I have a list in one spreadsheet, we'll call it 'spreadsheet A' that I need
to cross reference with another larger spreadsheet, which we'll call
'spreadsheet B'. I'd like to remove everything from B that isn't on A. Is
there an easy way of doing that?


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Dave Peterson