Problems Downloading Assignment

I lost all of my work when I closed out of the Jupyter notebook despite the fact that I saved and created a checkpoint. To prevent this from happening again, I want to work in a Anaconda Jupyter Notebook. The issue that I am not having is that when I select download .ipynb, the file has a json extension. I tried three times. Each time the following file downloaded
Logistic_Regression_with_a_Neural_Network_mindset.json . Can you tell me why this is happening?

This is some kind of bad interaction between the Coursera notebooks and most browsers. The notebooks are JSON files and the contents are fine. You just have to rename it to have the correct extension of “.ipynb”. This has been reported for > 6 months at this point, but it’s a Coursera problem apparently so even the course staff can’t do anything about it.