urgent - OWC spreadsheet

[guru]

Hi all

I'm getting this strange error when i published an excel
sheet as web page.

My excel sheet has a WEEKNUM function,and when published
as web page this value is shown as #NAME?

i found that this was due to Analysis toolpack - VBA
addin. How to include this in the OWC component? Any ideas

Please help me on this fast.. i got fixed and unable to
proceed ahead

thanks in advance
Guru