The following array formula will return the address of the last
numeric value in A1:A10.
=ADDRESS(MAX(ROW(A1:A10)*ISNUMBER(A1:A10)),1)
Since this is an array formula, you must press CTRL+SHIFT+ENTER
rather than just ENTER when you first enter the formula and
whenever you edit it later. If you do this properly, Excel will
display the formula enclosed in curly braces {} in the formula
bar.

Signature
Cordially,
Chip Pearson
Microsoft MVP - Excel
Pearson Software Consulting, LLC
www.cpearson.com
> Sorry, I actually want to return the last cell not the value in
> the
[quoted text clipped - 3 lines]
> returns
> the locatoin. e.g. B9