I've been using the .webarchive files for a while, and I'm wondering if anyone knows how the format works. I notice other browsers save the HTML and linked files, for example, Mozilla saves the raw HTML in one file, and linked images (and other files) in a separate folder.
But so far I've been unable to dissect the .webarchive files and get anything out of them. I'd like to be able to access the HTML, make a few changes, resave it; or maybe extract a couple of jpgs (or just delete the jpgs for advertisements before printing it).
You can open a .webarchive file in a text editor and see the HTML, but it looks like the attached files are stored inside this file as binary data, which is a very clumsy way to do things. It would have been a lot more useful to store these files in a Package, so you could control-click and do "Show Package Contents" to get at the data.
So.. does anyone know how to get into these .webarchive files and do anything useful with it?

I found the solution to extracting .webarchive files, thanks to another hint at this address:

http://www.macosxhints.com/article.php?story=20050621010532552

To extract an example.webarchive file, use this command:

textutil -convert html example.webarchive

This will extract the HTML file as well as the attached jpeg, gif, and other image files.