def _build_zip_excel(queries):
temp = tempfile.TemporaryFile()
zip_file = ZipFile(temp, 'w')
for r in queries:
zip_file.writestr('%s.xlsx' % r.title,
ExcelExporter(r).get_output() or "Error!")
zip_file.close()
ret = FileWrapper(temp)
ret.size = temp.tell()
temp.seek(0)
return ret
