Doing "Save as" of an XML Spreadsheet document into an Excel Document in Java -

how convert "xml spreadsheet" document excel using java code?

i can manually opening document (which windows recognize can opened in excel, opened in excel) in excel , file->save as-> excel 2003 workbook. however, i'd prefer can automate this. there anyway can this? tried copy xml spreadsheet file (ends .xml) excel (ends .xls), don't work apache poi still treat xml document.

if have xml file , converting xls file u can use sax parse read data xml file , convert data xls file. can create xls file using servlet response.setcontent() method.