C#：读取xls文件

String path = @"G:\新建文件夹\AW-还原原始MAP图\AW1680B_U94361-15_20190109145048.xls";
            string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";" +
                                "Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
            //把第一行也作为数据行，那我们可以给连接字符串添加一个HDR=No属性
            //把所有列都做为字符串来读取，只要添加属性IMEX=1即可

            //Microsoft.ACE.OLEDB.12.0
            //Microsoft.Jet.OLEDB.4.0    这个可能会报错

            //学习网址如下：
            //https://blog.csdn.net/jiajiayouba/article/details/7531707
            //https://www.cnblogs.com/baby0814/p/5545292.html

            DataSet ds = new DataSet();
            // OleDbDataAdapter oada = new OleDbDataAdapter("select * from [sheet1(表名)$]", strConn);
            OleDbDataAdapter oada = new OleDbDataAdapter("select * from [_00_STDF01$]", strConn);
            oada.Fill(ds);

            showResult(ds.Tables[0].Rows.Count);