Downloading excel in 2010 instead of 2003 through webdynpro java application

Hi Experts,

We have developed a webdynpro java application where we are downloading an excel file through linktourl UI element. we are not using any external jars to create that excel and we used simple java.io API. When we run the application and trying to download the excel, by default it is asking us to save in 2003 instead of 2010. I came to know that it depends on the version of MS office available / installed in SAP portal server. Can somebody provide SAP official links to support this?

Thanks in advance,

Regards,

Pradeep