Apache POI change format from xlt to xls

Question

I opened some xlt-file with Apache POI, changed it and saved it as xls-file.

But if I open result xls-file with Excel and click File -> Save as... the type of file still will be Template *.xlt.

So I need to save xlt-file as xls (not only change name, but format).

Used code:

HSSFWorkbook workbook = new HSSFWorkbook(new FileInputStream("D:\\Template.xlt"));
// ...
workbook.write(new FileOutputStream("D:\\Result.xls"));

Answer 1

Answered: http://stackoverflow.com/questions/714172/poi-using-excel-templates