title: Editing Excel Formulas in Python
body: <p>I have this excel file</p>
  <div class="s-table-container">
  <table class="s-table">
  <thead>
  <tr>
  <th style="text-align: left;">employee Salary</th>
  <th style="text-align: center;">Month</th>
  <th style="text-align: left;">Sum</th>
  </tr>
  </thead>
  <tbody>
  <tr>
  <td style="text-align: left;">10000</td>
  <td style="text-align: center;">5</td>
  <td style="text-align: left;">50000</td>
  </tr>
  <tr>
  <td style="text-align: left;">20000</td>
  <td style="text-align: center;">7</td>
  <td style="text-align: left;">14000</td>
  </tr>
  </tbody>
  </table>
  </div>
  <p>So now in the sum column, there is a formula <code>=A2*B2</code>, for all the rows in the table.</p>
  <p>Now, how to read these formulas in python from my excel sheet and make them dynamic so if I want to change the formula to <code>=A2+B2</code> for all the rows,in future I can do it easily.</p>