C#操作excel

读excel:
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;
        }


写excel:
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;
   }