The following JS code will save the inner text of an element like ‹Div id="Save"›, the server must have Microsoft word installed on it and it works only on IE.
function SaveAsWord()
{
var sp = document.getElementById("Save");
var docApp = new ActiveXObject("Word.Application");
var doc = new ActiveXObject("Word.Document");
doc.Application.Visible=false;
doc.Content=sp.innerText;
// Show Save Dialog
doc.Save()
doc.Application.Quit();
}