title: Set an excel file as response in REST Service
body: <p>I used the below example to test. REST Api works, but it gives result in stream format.
  But,I expect result with file option. I used this example to ingrate with Angular JS framework.</p>
  
  <pre><code>@GET
    @Path("/get")
    @Produces("application/vnd.ms-excel")
    public Response getFile() {
      LOG.info("get - Function begins from here");
  
      File file = new File("/home/test/file.xls");
  
      ResponseBuilder response = Response.ok((Object) file);
      response.header("Content-Disposition",
        "attachment; filename=new-excel-file.xls");
      response.header("Content-Type","application/octet-stream");
      return response.build();
  
    }
  </code></pre>