Visual is all nice and all, but I really fancy the 'computational' model of spreadsheets which is very easy to learn and apply IMO.

My latest find is the CUE language, which I believe is the first 'typed' version of a spreadsheet (in disguise). CUE is like spreadsheets, but on steroids!

Here is an example: https://cuelang.org/play/?id=r4VXwbEG185#cue@export@yaml