How to Open an IPYNB File

Choose the method by your goal

Use a local notebook environment when you need to edit cells, install packages, access local files, or run code. Use a browser-only viewer when you only need to read saved Markdown, code, and outputs and do not want to upload the notebook.

Google Colab is suitable when you want a hosted notebook environment, but opening a file there is different from simply reviewing an existing saved result. Do not upload a notebook containing sensitive material to any third-party service unless you understand its data policy.

Open locally in Jupyter

Install a supported Python environment and Jupyter, start the local Jupyter interface, then choose the `.ipynb` file from its file browser. This is the right path when the notebook depends on your local packages, files, or data connections.

Before running a downloaded notebook, inspect the code and understand what it accesses. Opening a notebook does not require execution; running a cell is a separate action.

Open in VS Code or Colab

In VS Code, install the official Jupyter extension, open the file from Explorer, then choose the kernel you intend to use before running anything. In Colab, upload the notebook through its file workflow and verify any required data files and packages separately.

Neither platform can recreate an output that was not saved in the notebook. A missing chart may be a saved-output issue, not an opening issue.

Use a local viewer for read-only review

The local viewer on this site reads the selected file in the browser and does not execute its cells. It is useful for reviewing a submission, inspecting saved results, or preparing a print copy without installing a kernel.