... m_fileName,FileMode.OpenOrCreate, FileAccess.ReadWrite);StreamWriter writer = new StreamWriter( stream );writer.BaseStream.Seek( 0, SeekOrigin.End );writer.Write("{0} {1} \n", DateTime.Now.ToLongTimeString(),DateTime.Now.ToLongDateString());writer.Write( ... m_fileName,FileMode.OpenOrCreate, FileAccess.ReadWrite);StreamWriter writer = new StreamWriter( stream );writer.BaseStream.Seek( 0, SeekOrigin.End );writer.Write("{0} {1} \n", DateTime.Now.ToLongTimeString(),DateTime.Now.ToLongDateString());writer.Write( ... DateTime.Now.ToLongTimeString(),DateTime.Now.ToLongDateString());writer.Write( "Adding employee - Name: {0}, SSN: {1}",name, SSN );writer.Write("\n \n\n");writer.Flush();writer.Close();}}A new class,...