Append Data from TkInter to Excel

[zinho]

Hi, I'm new in python.

I stole this code here and i need adat it.

How save data in existing excel file (below last data)
I need a function to save into excel.

from tkinter import *

class GUI:
    def __init__(self, master):
        self.master = master
        master.title("Torneio de Sinuca...")
        self.var = IntVar()
        self.label = Label(master, textvariable=self.var)
        self.label.pack()

        self.listbox = Listbox(master)
        self.listbox.pack()
        self.var.set(self.listbox.size())

        self.element = StringVar()

        self.Entry = Entry(master, textvariable=self.element)
        self.Entry.pack()

        self.close_button = Button(master, text="Adicionar", command=self.test)
        self.close_button.pack()

    def test(self):
        if len(self.element.get()) != 0:
            value1 = (self.element.get())
            self.listbox.insert(END, value1)
            #shows how many items in list
            #print (self.listbox.size()) 
            self.var.set(self.listbox.size())
            self.Entry.delete(0, END)
    def howSaveExistingExcelFile():
        # I need save data (name inside listbox) into excel, below last data
root = Tk()
my_gui = GUI(root)
root.geometry("230x250")
root.mainloop()

I find it

from xlrd import open_workbook
from xlwt import Workbook
from xlutils.copy import copy

rb = open_workbook("Login.xls")
wb = copy(rb)

s = wb.get_sheet(0)
s.write(0,0,'A1') #This code save ever on first cell, I need save below last row
wb.save('Login.xls')

Thank you!!