Assume data in row2 down
Put in C2:
=ISNUMBER(MATCH(A2,B:B))
Copy down to the last row of data in col A
Apply autofilter on col C, filter for TRUE
--
Max
Singapore
http://savefile.com/projects/236895
xdemechanik
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"GARY" wrote:
Col A has 2500 cells and Col B has 1 million cells.

How can I find the cells in Col A whose contents exactly match those
in Col B?
How should the formula be written?