title: Get sheet by name using openpyxl
body: <p>I am writing some data into an Excel file, but I don’t know how to adjust the code in order to be able to control which sheet I am writing into:</p>
  <pre><code>from openpyxl import load_workbook
  
  wb = load_workbook(filename)
  active_ws = wb.active
  </code></pre>
  <p>Instead of <code>wb.active</code>, how can I say something like <code>Sheets('Data')</code> (this is how the VBA syntax would look like...)?</p>