You can also generating Open Document spreedsheets (xls) and then convert them
to xlsx document with
libreoffice for exemple.
I think that generating Open Document Format is more easy than generating
Office Open XML. I have do it in
some simple case.

Does anyone know of success stories in generating Office Open XML
artifacts using XSLT?

(This is the "open" format used by Microsoft Office since 2007,
standardized in ISO/IEC 29500 and ECMA-376.)

I am looking for pointers to solid documentation of namespaces and
package structure, particularly for SpreadsheetML (Microsoft's .xlsx
format) as used in Excel 2007.

Thanks in advance,
--Paul

--
Nicolas BUONOMO
CNAF - CNEDI RhC4ne Alpes
DSI - Direction Fonctionnelle et Processus
Relation avec les CollectivitC)s Territoriales
TC)l : 0478636669 / 0677877811
MC)l : nicolas.buonomo@xxxxxxxxxxx