/// <summary>  
        /// 获取EXCEL的表 表名字列   
        /// </summary>  
        /// <param name="p_ExcelFile">Excel文件</param>  
        /// <returns>数据表</returns>  
        public static DataTable GetExcelTableName(string p_ExcelFile)
        {
            try
            {
                if (System.IO.File.Exists(p_ExcelFile))
                {
                    OleDbConnection _ExcelConn = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Extended Properties=\"Excel 8.0\";Data Source=" + p_ExcelFile + ";Extended Properties=\"Excel 8.0;HDR=YES;IMEX=1\"");
                    _ExcelConn.Open();
                    DataTable _Table = _ExcelConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });
                    _ExcelConn.Close();
                    return _Table;
                }
                return null;
            }
            catch
            {
                return null;
            }
        }