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.

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.