public ActionResult ImportFromXLSX(HttpPostedFileBase file)
{
if (file == null)
{
return(HttpNotFound());
}
string filePath = Server.MapPath("~/Content/documents/" + Path.GetFileName(file.FileName));
file.SaveAs(filePath);
TransferData export = new TransferData(productService);
export.ImportFromXLSX(filePath);
return(RedirectToAction("GetAllProducts"));
}