[bitmedley]

Maybe xsv or csvkit?

https://github.com/BurntSushi/xsv

https://csvkit.readthedocs.io/en/latest/

[leonim]

I'll add to that list: https://github.com/johnkerl/miller

Also, I like using VisiData already mentioned.

[gjvc]

Thank you for these two; they look very useful.