Word File Display in Browser.

FileResult will not display the content of your Word file to a client, it is a download execution. What you need is to change the document's content into something appropriate for a browser (so that he can display it). For example you could convert your Word document to a HTML file in C# like the following:

var document = DocumentModel.Load(Server.MapPath("~/Sample.docx"));
document.Save(Server.MapPath("~/Sample.html"));

The code comes from this .NET component designed for Word documents, also just to add in a case you do actually want a download rather then a display than take a look at this article that shows how you can export your Word document in ASP.NET (note that it works for MVC as well in a same manner).

http://www.c-sharpcorner.com/forums/thread/153951/opening-worddoc2007-inside-webbrowserc-sharp-net.aspx

http://www.dotnetspider.com/resources/44302-How-show-Microsoft-Word-Document-content-browser-using-ASP.NET.aspx

http://www.aspsnippets.com/Articles/Display-Word-document-on-web-page-in-ASP.Net.aspx

http://forums.asp.net/t/1599094.aspx