[zmmmmm]

There seem to be literally dozens of solutions to do read-only operations but very few to enable comfortable editing of the files in-place in a Unix / command line environment.

Seems like a real gap in the software ecosystem atm:

    - fast
    - no limit on file size
    - spreadsheet style layout
    - command line
    - easily edit and update individual cell => save

I've tried VIM's CSV plugins many times and have never been satisfied.

[rabidrat]

Have you tried VisiData? https://visidata.org.

[zmmmmm]

Wow, that's exactly what I wanted - thanks!