Hi,
Maybe Edward John can help you with some notes related to it..
Anyway, you may check these links for update on analyzer 7.x with excel 2013..
http://service.sap.com/sap/support/notes/1652769
BEx Analyzer 7.x and MS Office 2013? | SCN
Changes after Upgrade to SAP NetWeaver BW 7.3x
Complete Installation SAP GUI 730 and BEx Frontend - SAP NetWeaver Business Warehouse - SCN Wiki
Regards,
Loed