Here is a link to a blog post from Thomas Zurek at SAP: https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/8483 Thomas briefly talks about some MDX work that was done in SAP BW to better support Microsoft’s Excel 2007. Note that Thomas is a Development Manager at SAP working in the BI area on the SAP NetWeaver platform, so he definitely has the inside track.