C#操作Excel(读取)

    /**//// <summary>
        /// 返回Excel数据源
        /// </summary>
        /// <param name="filename">文件路径</param>
        /// <returns></returns> 
    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 =补充：软件开发 , C# ,