title: Create a Dropdown Menu on Tkinter with Data from excel
body: <p>I'd like to Create a Dropdown Menu on Tkinter via using Tkinter and xlrd. 
  The Values of the dropdown Menu shall be from an excel-list. So far I only have this:</p>
  
  <pre><code>i = 0
  while i &lt; 96:
      i = i+1
      m=sheet.cell_value(i,1)
      print(m)
  mbuttonMaterial = Menubutton(tkFenster, text='Material')     
  picks   = Menu(mbuttonMaterial)               
  mbuttonMaterial.config(menu=picks)
  picks.add_command(label=sheet.cell_value(8,1)+ '/'+sheet.cell_value(8,2),command = ChooseMaterial)
  mbuttonMaterial.pack()
  mbuttonMaterial.config(bg='white', bd=4, relief=RAISED)
  mbuttonMaterial.place(x=54,y=200, width=100, height = 50)
  </code></pre>
  
  <p>I would like to use m as a variable instead of the value 8. But only integers are allowed. Do I have to use openpyxl? Do you have any suggestions? Maybe there's another way. This is the first time I'm using Python.</p>