Read Mixed Datatype from Excel to Datatable in c#

This is My Excel File. i want to get these datas to datagridview. worked but some data displaying like this 9.94092e+009

Coding

 connectionString = string.Format("Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=\"Excel 8.0;IMEX=1;HDR={1}\";", ExcelFilePathText.Text.Replace("'", "''"), FirstRowContainsHeaders ? "Yes" : "No");
            string strSQL = "Select * From [Sheet1$]"; using (OleDbConnection excelConnection = new OleDbConnection(connectionString))
            {
                excelConnection.Open();
                using (OleDbCommand dbCommand = new OleDbCommand(strSQL, excelConnection))
                {
                    using (OleDbDataReader dataAdapter = dbCommand.ExecuteReader())
                    {
                        DataTable dTable = new DataTable();
                        dTable.Load(dataAdapter); 
                        dataGridView1.DataSource = dTable;
                    }
                }
            }

Thanks & Regards,