In the MS Explorer browser you can save a webpage as a "Web Archive, single file, *mht" that includes both text and images in the one file. An mht file can be uploaded onto a website and anyone with an Explorer browser can read it, but other browsers cannot open the file. The beauty of the file is that it includes images within the file, so you don't need separate image files (eg jpeg files). At present in the non-Linux world the ubiquitous way to upload text and images onto a website is to use html files with links to jpeg image files or similar. Or use pdf files which require a separate program to download.
Does anyone know if any Linux distribution has developed a similar file type to the mht file where images and text are stored within the same file, that most browsers will open including non-linux browsers such as Explorer and Netscape and Firefox?

The Konqueror web browser has a "archive web page" in the Tools menu.

You can browse it from the Konqueror web browser directly.

Essentially the .war file is a tarball that contains the files needed to browse the page offline.

This isn't "Universal", because you either need to browse the .war file using Konqueror, or untar the file in it's own directory; E.G., "tar xvzf <filename.war>" to restore the original files.

Thanks for that information Jschiwal. Looks like a "universal" webfile type you can paste images into directly that all browsers can read never was developed either in the Linux or the non-Linux world. Scarecrow Man on a Windows forum brought to my attention a way to embed an image in an html file that Konqueror and some other browsers will read - "here is a trick that apparently works with Firefox, Opera, Konqueror and Safari, but not IE". The link he gave is http://rifers.org/blogs/gbevin/2005/...es_inside_html
I'm about to try it out.