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!

Beyond CSV files, Python in Excel supports connections to databases and APIs, expanding its applications for diverse data challenges and decision-making.

Simply create a new .py file in the same folder as your main Python code. Then “import” that file as you now know how to do, then access the functions from within that module.

Pre Python 3.9, we could write something like this to open two (or more) file I/O streams: That first line is pretty long, too long in fact.