django upload and read xls file by xlrd

django_import_xls.py

def import_data(request):
    data = request.FILES.get('data')
    book = xlrd.open_workbook(data.name, file_contents=data.read())
    sheet = book.sheets()[0]
    names = sheet.col_values(1, 1)
    stocks = sheet.col_values(5, 1)
    dates = sheet.col_values(22, 1)

    for name, stock, date in zip(names, stocks, dates):
        product, created = Product.objects.get_or_create(name=name)
        product.stock = stock
        product.date = date
        product.save()

    return HttpResponse('ok')