Another option is:<BR><BR>A .js file which is an inelegant solution but is vanilla-html-workable.<BR><BR>And then you can go to ASP or PHP but those are way over the top for what you need. I'd do ...

When you save the MS Word document as a webpage, then it in saved with the extension .htm and the format is HTML. When you click on this HTML file, it will open with your default browser.