[sceadu]

https://elpa.gnu.org/packages/csv-mode.html ;) (M-x csv-align-fields)

[tmtvl]

Now hang on: Emacs isn't just "a text editor", it's a Lisp environment which just so happens to have the best text editor as front-end.

[BeetleB]

Yeah, not sure which is more bloated, Emacs or LibreOffice :-)

[throwanem]

C-c C-a is quicker, as is C-c C-u to unalign them again.