I have an aggregate spreadsheet, we'll call it Sheet 1. And then a sub-set
spreadsheet, we'll call it Sheet 2. Sheet 1 has ALL 14,900 rows. Sheet 2
contains 5,163 rows. The sub-set sheet, Sheet 2, contains information that
needs to be overwritten in Sheet 1. The Sheet 2 sub-set has more recent
information.

Can anyone help me with a LOOKUP and REPLACE formula that will look for the
key in Sheet 1 and Sheet 2 and replace the contents, just a couple of cells,
in the appropriate cells in Sheet 1???

Thanks in advance.

wnfisba