Re: Reading portions of large files

[Eli Zaretskii]

> From: David Kastrup <dak@gnu.org>
> Newsgroups: gnu.emacs.help
> Date: 09 Jan 2003 19:20:06 +0100
> 
> > I have very large files, sometimes over 1G, from which I would like to edit
> > very small portions, the headers or trailers for example.  Emacs won't open
> > those files, it complains about them being too big.  Is it possible to
> > edit, and save back after editing, only small portions of such files.
> 
> insert-file-contents is a built-in function.
> (insert-file-contents FILENAME &optional VISIT BEG END REPLACE)

I don't think this will help the OP, since BEG and END need to be
representable as Lisp integers, so they still are subject to the same
128-MB limit.