[DigitalJack]

I don't know why you are being downvoted, it seems like a legitimate question to me.

I routinely edit text files that are hundreds of megabytes, and sometimes over a gig. These are usually transcripts from chip simulations, where I'm tracking down where something went wrong.

Most often I do this in emacs, and sometimes vim. They both do fine with it, although emacs used to warn about files over a certain limit. It has always done fine with them in practice.

[DavidWanjiru]

Lately, HN down-votes seem to me have a very "boo boy" thing about them. There's nothing in the original comment that would warrant a down-vote.

[porker]

Upvoting you for that. I've noticed a change too; it's reduced the amount I comment.