Pandas ipynb in document page is not actually ipynb format

Document page for example: https://pandas.pydata.org/pandas-docs/stable/style.html on top

New in version 0.17.1

Provisional: This is a new feature and still under development. We’ll be adding features and possibly making breaking changes in future releases. We’d love to hear your feedback.

This document is written as a Jupyter Notebook, and can be viewed or downloaded here.

http://nbviewer.ipython.org/github/pandas-dev/pandas/blob/master/doc/source/style.ipynb

The target style.ipynb file is just exported HTML file, not the original ipynb(json) format

Comment From: TomAugspurger

There's an option to download it in the top-right of the toolbar.