VisiData is really, really, really cool and I have fallen in love with it. There's a great primer here: https://jsvine.github.io/intro-to-visidata/

Woah - that's probably one of the best websites I've seen for a CLI based tool

I was just introduced to VisiData at work and have fallen in love with it.

First I've heard of this tool. I've been using the Python-based csvkit and the Java-based OpenRefine (formerly Google Refine) to work with and clean CSVs for years. Thanks for the recommendation.