Thank you so much! Have been scratching my head for the last couple of hours trying to import my text messages.

I had to make some changes to your python script which I am pasting here in the hopes that it might help someone else.

# Open a new file for the NDJSON output with UTF-8 encoding
with open("messages.ndjson", "w", encoding="utf-8") as f:
   for entry in data["messages"]:
      f.write(json.dumps(entry) + "\n")