How to export data in xls format using python django

   import xlwt

    import datetime , time

    file_name = 'Expense-duplicate-'+str(int(round(time.time() * 1000)))+'.xls'

    Duplicate = AvOutExpDashDuplicate.objects.values('e_employee_number','report_owner_id').order_by()[:5]

    todo_obj=Duplicate

    response = HttpResponse(content_type='application/ms-excel')

    response['Content-Disposition'] = 'attachment; filename=%s' %(file_name)

    wb = xlwt.Workbook(encoding='utf-8')

    ws = wb.add_sheet("Todo")

    row_num = 0

    columns = [ (u"Employee Number", 4000), (u"Report ID", 8000), ]

    font_style = xlwt.XFStyle()

    font_style.font.bold = True

    for col_num in xrange(len(columns)):

        ws.write(row_num, col_num, columns[col_num][0], font_style)

        # set column width

        ws.col(col_num).width = columns[col_num][1]

    font_style = xlwt.XFStyle()

    font_style.alignment.wrap = 1

    for obj in todo_obj:

        row_num += 1

        row = [

            obj['e_employee_number'],

            obj['report_owner_id'],

        ]

        for col_num in xrange(len(row)):

            ws.write(row_num, col_num, row[col_num], font_style)

    wb.save(response)

    return response