<p>You can use software or a browser extension to save your posts as <strong>.mht</strong> files, while you are looking at a post in the browser. These files can then be viewed off-line by any program that can open them, keeping all the website formatting. Due to this they are a bit heavy, something like a few MB each.</p>

<p>Further, in my experience you can copy-paste from an <strong>.mht</strong> file to, say, a word document, and the formatting of the mathematical notation will be preserved (but I think it won't be recognized as math symbols to be further worked with an equation editor). </p>
