Columns A & B contain several thousand Project Numbers (e.g., P1052, PA844,
P6721.6, etc.). Column A has the latest list of Project Numbers. Column B
has an older list of Project Numbers. As such, column B is a subset of
column A. I need to find all of the €œnew€� (i.e., unique) Project Numbers
that exist in column A relative to column B, and put the results in column C.
Please note that row 1 is used for column headings, so the data contained in
columns A and B start in row 2.

I would appreciate any help in writing a macro that compares the Project
Numbers in columns A and B and outputs the unique Project Numbers to column C
(starting in row 2). The macro would know to stop when it encounters the
last Project Number in column A (FYI - there are blank cells after the last
Project Number in column A, which obviously is the longest of the two
columns).

Thanks for the help.
Bob