Download do HTML de uma view

Download HTML action

public ActionResult Download(int id)
{
    var objetoEntity = ...;

    ViewEngineResult result = ViewEngines.Engines.FindView(this.ControllerContext, "Visualizar", "_Layout");
    string htmlTextView = GetViewToString(this.ControllerContext, result, objetoEntity);

    byte[] toBytes = System.Text.Encoding.Unicode.GetBytes(htmlTextView);

    return File(toBytes, "application/file", "template.doc");
}


private string GetViewToString(ControllerContext context, ViewEngineResult result, object model)
{
    string viewResult = "";
    var viewData = ViewData;
    viewData.Model = model;
    TempDataDictionary tempData = new TempDataDictionary();
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    using (StringWriter sw = new StringWriter(sb))
    {
        using (System.Web.UI.HtmlTextWriter output = new System.Web.UI.HtmlTextWriter(sw))
        {
            ViewContext viewContext = new ViewContext(context,
                result.View, viewData, tempData, output);
            result.View.Render(viewContext, output);
        }
        viewResult = sb.ToString();
    }
    return viewResult;
}