假如Excel中的數據如下：

數據庫建表如下：

其中Id為自增字段：

代碼：
代碼如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.OleDb;
using System.Configuration;
using System.Data.SqlClient;

namespace InExcelOutExcel
{
    public partial class ExcelToDB : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            FileSvr fileSvr = new FileSvr();
            System.Data.DataTable dt = fileSvr.GetExcelDatatable("C://Users//NewSpring//Desktop//Demo//InExcelOutExcel//InExcelOutExcel//excel//ExcelToDB.xlsx", "mapTable");
            fileSvr.InsetData(dt);
        }
    }
    class FileSvr
    {
        /// <summary>
        /// Excel數據導入Datable
        /// </summary>
        /// <param name="fileUrl"></param>
        /// <param name="table"></param>
        /// <returns></returns>
        public System.Data.DataTable GetExcelDatatable(string fileUrl, string table)
        {
            //office2007之前 僅支持.xls
            //const string cmdText = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;IMEX=1';";
            //支持.xls和.xlsx，即包括office2010等版本的   HDR=Yes代表第一行是標題，不是數據；
            const string cmdText = "Provider=Microsoft.Ace.OleDb.12.0;Data Source={0};Extended Properties='Excel 12.0; HDR=Yes; IMEX=1'";

            System.Data.DataTable dt = null;
            //建立連接
            OleDbConnection conn = new OleDbConnection(string.Format(cmdText, fileUrl));