title: Write output in xlsb file format (Excel binary file format) using pandas and pyxlsb
body: <p>I've read a lot of stackoverflow and other threads where it's been mentioned how to read excel binary file.</p>
  <p>Reference: <a href="https://stackoverflow.com/questions/45019778/read-xlsb-file-in-pandas-python">Read XLSB File in Pandas Python</a></p>
  <pre><code>import pandas as pd
  df = pd.read_excel('path_to_file.xlsb', engine='pyxlsb')
  </code></pre>
  <p>However, I can not find any solution on how to write it back as .xlsb file after processing using pandas? Can anyone please suggest a workable solution for this using python?</p>
  <p>Any help is much appreciated!</p>