This post will show you how to open CSV files in Python using the CSV module. You'll also learn another method + how to write CSV files!

You can, therefore, save a bunch of data using the exact same method you used to create your text file, but ensure to insert commas and new-lines in the right place. If you then save the file as ...

Here are some free Python file viewer and Python file editor software to help you open PY files on Windows 11/10 PC.

The problem I've noticed is that if I append the file with each of the 100k runs (one at a time), it can happen that two threads try to save to the file at the same time and some row (s) end up empty.