Hi Gordon
This is a ATP function
Install it : ToolsAdd-ins
On my site you can find formulas that not use this Add-in
http://www.rondebruin.nl/weeknumber.htm
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Regards Ron de Bruin
http://www.rondebruin.nl
"Gordon" wrote in message ...
Hi I'm using excel 2002...I've just come to use the weeknum formula I used so
much in Excel 97...but its now gone. How can I get around this?
Thanks
Gordon.