C#操作Excel(导入导出)

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/// <summary>
   /// 读取Excel文档
   /// </summary>
   /// <param name="Path">文件名称</param>
   /// <returns>返回一个数据集</returns>
   public DataSet ExcelToDS(string Path)
   {
   string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="+ Path +";"+"Extended Properties=Excel 8.0;";
   OleDbConnection conn = new OleDbConnection(strConn);
   conn.Open();
   string strExcel = "";
   OleDbDataAdapter myCommand = null;
   DataSet ds = null;
   strExcel="select * from [sheet1$]";
   myCommand = new OleDbDataAdapter(strExcel, strConn);
   ds = new DataSet();
   myCommand.Fill(ds,"table1");
   return ds;
   }
  /// <summary>
   /// 写入Excel文档
   /// </summary>
   /// <param name="Path">文件名称</param>
   public bool SaveFP2toExcel(string Path)
   {
   try
   {
   string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" +"Data Source="+ Path +";"+"Extended Properties=Excel 8.0;";
   OleDbConnection conn = new OleDbConnection(strConn);
   conn.Open();
   System.Data.OleDb.OleDbCommand cmd=new OleDbCommand ();
   cmd.Connection =conn;
   //cmd.CommandText ="UPDATE [sheet1$] SET 姓名='2005-01-01' WHERE 工号='日期'";
   //cmd.ExecuteNonQuery ();
   for(int i=0;i<fp2.Sheets [0].RowCount -1;i++)
   {
   if(fp2.Sheets [0].Cells[i,0].Text!="")
   {
   cmd.CommandText ="INSERT INTO [sheet1$] (工号,姓名,部门,职务,日期,时间) VALUES('"+fp2.Sheets [0].Cells[i,0].Text+ "','"+
   fp2.Sheets [0].Cells[i,1].Text+"','"+fp2.Sheets [0].Cells[i,2].Text+"','"+fp2.Sheets [0].Cells[i,3].Text+
   "','"+fp2.Sheets [0].Cells[i,4].Text+"','"+fp2.Sheets [0].Cells[i,5].Text+"')";
   cmd.ExecuteNonQuery ();
   }
   }
   conn.Close ();
   return true;
   }
   catch(System.Data.OleDb.OleDbException ex)
   {
   System.Diagnostics.Debug.WriteLine ("写入Excel发生错误:"+ex.Message );
   }
   return false;
   }