You could still open text editors from GUI. Many of them have csv specific features like rainbow colors, column alignments, etc. and for less number of columns having large number of rows don’t matter because text editors are designed for that.
Unless you need to add/remove columns, in that case I just use libre office calc/excel depending on what os I’m in if I need GUI. But mostly I just use python if I’m programming.


They missed the chance to name it unko