Have you started with
http://groups.google.co.uk/groups/se...bering+invoice ?
--
David Biddulph

"Motorcar Mama" wrote in message
...
I frequently need to create invoices in Excel using a template I downloaded
from Microsoft template library. I would like to number these invoices
automatically. I.E., the first invoice is numbered 08-001, the next
08-002,
etc. The number is located in the same cell in each new workbook. The
invoices could be contained as worksheets in a workbook.

Any suggestions on how to accomplish this?