C#读取Excel中的数据的类

using System;
using System.Collections.Generic;
using System.Data.OleDb;
using System.IO;
using System.Text;

using WirelessPlatform.Models;

namespace WirelessPlatform.Utility
{
    public class ExcelExtension
    {
        //private static readonly string _Conn = "Provider=Microsoft.ACE.OleDb.12.0;Data Source={0};Extended Properties='Excel 12.0;HDR=YES'";   //Office 2007
        private static readonly string _Conn = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties='Excel 8.0;HDR=YES'";    //Office 2003
        private static readonly string _Sql_Select_SaleInfo = "Select * From [接收短信记录$]";

        public static IList<XlsEntitySaleInfo> GetSaleInfoEntitys(string xlsFile)
        {
            IList<XlsEntitySaleInfo> list = new List<XlsEntitySaleInfo>();
            using (OleDbConnection conn = new OleDbConnection(string.Format(_Conn, Path.GetFullPath(xlsFile))))
            {
                OleDbCommand cmd = new OleDbCommand(_Sql_Select_SaleInfo, conn);
                conn.Open();
                OleDbDataReader rdr = cmd.ExecuteReader();
                while (rdr.Read())
                {
                     //将rdr中的数据写入数据库或显示出来

                }
            }
            return list;
        }
    }
}