NotJSONError('Notebook does not appear to be JSON: \'\\ufeff{\\n "cells": [\\n {\\n "cell_typ...',)
There might be a copy saved in a folder called .ipynb_checkpoints adjacent to the notebook file. If not, then the fact that it's 0 bytes means that the data is lost.There might be a copy saved in a folder called .ipynb_checkpoints adjacent to the notebook file. If not, then the fact that it's 0 bytes means that the data is lost.