WEEKNUM is part of the Analysis ToolPak, toolsoptionsadd-ins and if it is
selected clear it, close and restart Excel and select it. If it is not
selected just select it


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Regards,


Peo Sjoblom



"George" wrote in message
...
Yesterday I spent a lot of time modifying a workbook. Everything worked
fine until after rebooting from a windows update. Now every cell with the
function WEEKNUM in it shows the error #NAME. Where did it go and how can
I get it back?

Thanks for the help,
GeoK