And there you have it: now you know how to open CSV files in Python! And with that, you’ve dabbled in your first bit of JSON development and even a bit of data science.

This post explains how to write to a file in Python. You'll discover how to create word files (.docx), spreadsheets (.csv), text files, and more!

How to convert an XLS file to CSV Let’s say you have the file clients.xlsx and you need it converted to clients.csv to be then uploaded as a client list in your new CRM tool.