DataTable dtNew = new DataTable();

        dtNew.Columns.Add("ColumnName", typeof(string));

        for (int i = ; i < dt.Rows.Count; i++)

       {

            dtNew.Columns.Add("Column" + (i + ).ToString(), typeof(string));

       }

        foreach (DataColumn dc in dt.Columns)

        {

            DataRow drNew = dtNew.NewRow();

            drNew["ColumnName"] = dc.ColumnName;

            for (int i = ; i < dt.Rows.Count; i++)

            {

                drNew[i + ] = dt.Rows[i][dc].ToString();

            }

            dtNew.Rows.Add(drNew);

        }