Do this like,
string xmlFile = File.ReadAllText(@"Yourxml.xml");
XmlDocument xmldoc = new XmlDocument();
xmldoc.LoadXml(xmlFile);
XmlNodeList nodeList = xmldoc.GetElementsByTagName("FilingLeadDocument");
List<info> inforamtion = new List<info>();
foreach (XmlElement node in nodeList)
{
info inf=new info();
inf.RegisterActionDescriptionText = node.GetElementsByTagName("j:RegisterActionDescriptionText")[0].InnerText;
inf.DocumentDescriptionText = node.GetElementsByTagName("nc:DocumentDescriptionText")[0].InnerText;
inf.DocumentReceivedDate = Convert.ToDateTime(node.GetElementsByTagName("nc:DocumentReceivedDate")[0].FirstChild.InnerText);
inforamtion.Add(inf);
}
class info
{
internal string RegisterActionDescriptionText { get; set; }
internal string DocumentDescriptionText { get; set; }
internal DateTime DocumentReceivedDate { get; set; }
}