title: How to switch between sheets in Excel openpyxl Python to make changes
body: <p>Consider:</p>
  <pre><code>import openpyxl
  wb = openpyxl.load_workbook('D:\excel.xlsx')
  wb.get_sheet_names()
  </code></pre>
  <p>After this, I can see the worksheets (85) that the Excel file has. Now I want to go into each sheet, edit data in 2-3 cells (which is same for all the sheets) and then save the file.</p>