The *.ipynb file extension is used for notebooks open with Jupyter Notebook formerly named IPython Notebook. The extension *.ipynb is from letters IPython Notebook developed as a Python command shell....
The *.ipynb file extension is used for notebooks open with Jupyter Notebook formerly named IPython Notebook. The extension *.ipynb is from letters IPython Notebook developed as a Python command shell. The Jupyter Notebook offers introspection, rich media, syntax, completion, and history. Inside ipynb file the notes blocks are stored in plain text JSON format, easier to share with colleagues and control versions.
Files with IPYNB extension may be used by Windows programs. The most popular software supporting IPYNB files is IPython. 97% of IPYNB files are IPython Notebook files using JSON format internally.
IPYNB stands for Interactive Python Notebook. When double-click to open an ipynb file, Windows examines the extension. If not recognized, it gives a message to select an app to open the file, meaning no default app is associated with the ipynb type.
The name displayed next to Jupyter logo reflects the ipynb file name. Clicking it allows renaming the file. Menu bar presents options to manipulate the notebook functions.
Jupyter Notebook
Google Colab
Microsoft Azure Notebooks