You’re right of course.

Like the other commenter said for this specific problem you’d use a spreadsheet.

It’s just an example though and there are others, like maybe removing url encoding from a string or something.

Again this can be done in some other tool without much fuss, but the versatility offered by notepad will be useful for a lot of people.

Heck, it probably can be done with a regex. (Yeah, I know)

There’s no need to kill three forests just to do the exact same work you could have done by opening your dataset in Excel.