Thanks David.

Looks like I'll have to find the original Office CD.

Mmmm, this will be a problem :(

Cheers,


On Fri, 28 Dec 2007 12:37:26 -0000, "David Biddulph" <groups [at]
biddulph.org.uk wrote:

=NETWORKDAYS(A1,A2)-1
which uses Analysis ToolPak.