title: Pandas: add several dataframes to a single Excel file
body: <p>I need to add several <code>df</code> to one excel and I want that they looks like 
  <a href="https://i.stack.imgur.com/iUIbM.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iUIbM.png" alt="enter image description here"></a>. 
  Is any function in <code>pandas</code>. that can make it?</p>