It's not a browser format (though browsers can render it), but that isn't the same not being a web format. The web is just the ability to retrieve files from ot

It's not a browser format (though browsers can render it), but that isn't the same not being a web format. The web is just the ability to retrieve files from other people's servers, that may themselves reference other files on yet other people's servers. As long as a file format supports hyperlinks, then it's suitable for the web. If you don't care about being able to actually click the hyperlink to activate your desktop system's uri schema handler, then even plain text works fine.