title: how do i verify that excel sheet already exist in workbook?
body: <p>I want to verify if the excel sheet has already exist in the current workbook.</p>
  
  <p><strong>Here is the Code:</strong> </p>
  
  <pre><code>import xlwt
  from xlwt import Workbook
  import xlsxwriter
  
  lst = ['Task', 'Status', 'Created_Date', 'Moved_Date']
  value = []
  
  wb = Workbook()
  
  def write_excel(fileName, sheetName, *args):
      ws = wb.add_sheet(sheetName)
  
      style0 = xlwt.easyxf('font: bold on')
      for col, value in enumerate(lst):
          ws.write(0, col, value, style0)
          ws.col(col).width = 0x0d00 + col
          # for row, value in enumerate():
  
      wb.save(fileName)
  
  write_excel('sample_xl.xls', 'sheet1', lst)
  </code></pre>