C#操作Excel（导入导出）

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class ExampleOfLegalsoft
{
    /// <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;
    }