When you upload a file, your data is not saved on the server. Your file is read and data is displayed in the template area. See the actual code used below when uploading the file .
[HttpPost]
public ActionResult Index(HttpPostedFileBase file)
{
var text = string.Empty;
StringBuilder sb = new StringBuilder();
if (file.ContentLength > 0)
{
Stream theStream = file.InputStream;
using (StreamReader sr = new StreamReader(theStream))
{
string line;
while ((line = sr.ReadLine()) != null)
{
sb.AppendLine(line);
}
}
}
ViewBag.Template = sb.ToString();
return View();
}