I tried it again...it works great! Thank you so much.

"Pete_UK" wrote:

In a helper column of sheet 1 (eg in H1), put this formula:

=IF(ISNA(MATCH(A1,Sheet2!A:A,0)),"Not present","Duplicated")

then copy it down the full extent of the data in sheet 1. You can also
put this formula in the helper column of sheet 2:

=IF(ISNA(MATCH(A1,Sheet1!A:A,0)),"Not present","Duplicated")

and copy down. Now if you apply autofilter to the helper column and
select "Duplicated" from the filter pull-down, you will see all the
records that exist in both sheets. Alternatively, by selecting "Not
present" from the filter pull-down you will see those records which
are unique to that sheet.

Hope this helps.

Pete

On Jun 27, 10:47 am, L wrote:
I have 2 worksheets with rows of data. I need to compare the data in column
1, worksheet 1, to the data in column 1, worksheet 2. I need to find out if
there is any of the data in column 1, worksheet 1 that is duplicate to column
1, worksheet 2. Can someone assist with this formula?