Assuming result is in either column A or C:

=IF(ISNA("A"&MATCH(A1,Sheet2!$A$1:$A$10,0)),IF(ISN A("A"&MATCH(A1,Sheet2!$C$1:$C$10,0)),"","C"&MATCH( A1,Sheet2!$C$1:$C$10,0)),"A"&MATCH(A1,Sheet2!$A$1: $A$10,0))

HTH

"S. Bevins" wrote:

I have a workbook with two sheets. I am trying to look up a value in cell A1
of Sheet 1 in colum A through C of Sheet 2. When it finds the value, I want
it to return a reference to the cell where it was found (or somehow tell me
where it was found).

I could reduce my search to just column A of Sheet 2, but I would prefer not
to since there are some cases were the value is in column C. I have not been
able to find a lookup function that returns a reference. Is this possible?