C#读取excel中的数据

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
           MessageBox.Show(ExcelToDataSet("d:/name.xls").Tables[0].Rows[0][0].ToString());
        }
        static public DataSet ExcelToDataSet(string filename)
        {
            DataSet ds;
            string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;" +
                            "Extended Properties=Excel 8.0;" +
                            "data source=" + filename;
            OleDbConnection myConn = new OleDbConnection(strCon);
            string strCom = " SELECT * FROM [Sheet1$]";
            myConn.Open();
            OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, myConn);
            ds = new DataSet();
            myCommand.Fill(ds);
            myConn.Close();
            return ds;
        }
    }
}