Is there a way to export a simple HTML page to Word (.doc format, not .docx) without having Microsoft Word installed?
If you have only simple HTML pages as you said, it can be opened with Word.
Otherwise, there are some libraries which can do this, but I don't have experience with them.
My last idea is that if you are using ASP.NET, try to add application/msword
to the header and you can save it as a Word document (it won't be a real Word doc, only an HTML renamed to doc
to be able to open).