title: Python xlwt read value
body: <pre><code>import xlwt
  
  wb = xlwt.Workbook()
  sheet = wb.add_sheet('SHEET1')
  
  #that value I want to get in my fu
  sheet.write(0, 0, xlwt.Formula('E4*H8'))   # for example value == 4 
  
  def fu(value):   
      x = value + 1
      return x                               #How I can get 5 in answer
  
  fu(???)
  
  wb.save('E:/')
  </code></pre>
  
  <p>Good day. How can i get the value of  the cell (0, 0), before I save the file and use it(int or float) in my function.
  Or I must save the file and open it with xlrd, get the value, and after then open file to run my function?</p>