jszym is a user on mastodon.club. You can follow them or interact with them if you have an account anywhere in the fediverse.
Do you ever work with huge CSVs? or CSVs at all, really...
Please do yourself a favour and try out "xsv". It's an amazing CLI tool for slicing, sampling, perusing, and generally juggling around CSVs, and it's lightning fast.
It saved my butt this week.