How can I get rid of "_data" behind xml file name

Hello everybody,

I use xfa.host.exportData("",0) to export xml file which I cann't appoint the name of xml. After I click the exporting button, a window jumps and fill the xml file name automatically, the name is "PDF file name_data.xml", in Adobe Reader Chinese version, "_data" will be translated by Chinese word, so it is not convenience to unify the method of getting xml.

My problem is if I can get rid of the postfix "_data" in xml file name? I doulbt maybe I can set in LiveCycle Designer, but I can't find out at present.

Thanks in advance!

Enlly