title: How to deal with warning : "Workbook contains no default style, apply openpyxl's default "
body: <p>I have the -current- latest version of pandas, openpyxl, xlrd.</p>
  <p>openpyxl : 3.0.6.<br />
  pandas : 1.2.2.<br />
  xlrd : 2.0.1.</p>
  <p>I have a generated excel xlsx- file (export from a webapplication).<br />
  I read it in pandas:</p>
  <pre><code>myexcelfile = pd.read_excel(easy_payfile, engine=&quot;openpyxl&quot;)
  </code></pre>
  <p>Everything goes ok, I can successfully read the file.</p>
  <p>But I do get a warning:</p>
  <pre><code>/Users/*******/projects/environments/venv/lib/python3.8/site-packages/openpyxl/styles/stylesheet.py:214: UserWarning: Workbook contains no default style, apply openpyxl's default
    warn(&quot;Workbook contains no default style, apply openpyxl's default&quot;)
  </code></pre>
  <p>The documentation doesn't shed too much light on it.</p>
  <p>Is there any way I can add an option to avoid this warning?</p>
  <p>I prefer not to suppress it.</p>