I'd open both workbooks.
Activate the workbook that's gonna get the name.
Then
Insert|Name|Define
Type in your name in the "Names in workbook" box
click in the "refers to" box (I'd erase what's there)
click on Window, then point at the other workbook.
go to the worksheet you want to use
select that range
I see something like:
=[book1.xls]Sheet3!$B$9:$B$19
in that "refers to" box.
How can I name a range that exists in a different workbook?
Thanks,
Keith