Convert IPYNB (Jupyter Notebook) to OPML

The IPYNB file extension stands for "Interactive Python Notebook" and is used exclusively with Jupyter Notebook. It is a JSON file format that contains a complete record of user sessions, including code, narrative text, equations, and visualizations. The IPYNB files facilitate reproducible research and easy sharing of data analysis workflows. Originating from the IPython project, Jupyter Notebook has expanded its capabilities to support multiple programming languages, making it a versatile tool in the data science and machine learning communities. The format's history traces back to the early 2010s when it was developed to enhance interactive computing and collaborative work.

OPML, or Outline Processor Markup Language, is a file format utilized primarily for outlining data structures. Initially developed in 2000 by UserLand Software, OPML was designed to facilitate the exchange of outline-based information between different software applications. Its uses have expanded over time, notably in organizing RSS feed lists and managing hierarchical data. The OPML file extension denotes XML-based documents that offer simplicity and interoperability in transferring structured information across diverse platforms. In essence, OPML serves as a versatile tool in the realm of data organization and syndication.