I think the csvlook utility comes from the Command Line Data Science book the author cites. I read some of that book, there was good info in there, but ultimate

I think the csvlook utility comes from the Command Line Data Science book the author cites. I read some of that book, there was good info in there, but ultimately it was a bit annoying because it's author based a lot of things on utilities he had written himself (like csvlook) which in many cases just did trivial things you could easily have done with shell commands or coreutils.