Viewing using computer Chrome a HTML page downloaded on Arndroid Chrome
Chrome for Android saves a webpage in MHTML format. It doesn't append the extension in the filename though, hence, the problem in opening it in Chrome on PC. Opening such a file in Chrome on PC without correct extension makes Chrome load the content of the webpage in plain text instead.
Appending .mhtml or .mht as extension to the filename and then opening the webpage in Chrome on PC should work.