Wow ... I can't imagine blocking blogs. Technical blogs are an invaluable resource IMO. Granted not all of them are "work friendly" ...
Here's the code snippet from the first link (XML method). The other one is too much to post. Plus you'd need additional files to use it. So I'll let you check it out at home.
From
http://cfsilence.com/blog/client/index.cfm/2006/7/19/Creating-Multiple-Tabs-in-Excel-with-Coldfusion<cfsetting showdebugoutput="false">
<cfheader name="content-disposition"
value="inline;filename=Exc
elWithMult
ipleWorksh
eets.xls">
<cfcontent type="application/msexcel"
>
<?xml version="1.0"?>
<Workbook
xmlns="urn:schemas-microso
ft-com:off
ice:spread
sheet"
xmlns:ss="urn:schemas-micr
osoft-com:
office:spr
eadsheet">
<Worksheet ss:Name="Worksheet 1">
<Table>
<Row>
<Cell ss:Index="1"><Data ss:Type="String">Test Data 1</Data></Cell>
</Row>
</Table>
</Worksheet>
<Worksheet ss:Name="Worksheet 2">
<Table>
<Row>
<Cell ss:Index="1"><Data ss:Type="String">Test Data 2</Data></Cell>
</Row>
</Table>
</Worksheet>
</Workbook>