title: Unable to save Jupyter notebook in VS Code
body: <p>I have been trying to save my jupyter notebook in the '.ipynb' format but am unable to do so, in whatsover extension. I encounter the following error message</p>
  <pre><code>Failed to save 'Untitled-1': File name file:///c%3A/Users/parni/OneDrive/Desktop/MINIPROJECT/INPUT/prac.py is not supported by Jupyter.
  
  Please make sure the file name matches following patterns:
  </code></pre>
  <p>I am also not able to extend and check out what pattern should I follow it will be great if anyone could help me out.</p>