sqlserver的表导入excel提示"找不到可安装的ISAM"”office是16的

private void InsertToExcel()
        {
            string strCon =“ Provider=Microsoft.ACE.OLEDB.12.0;Data Source="+strSaveFileName+";Extended Properties=Excel 12.0 xml;HDR=Yes;";
            StringBuilder strbSql = new StringBuilder();
            OleDbConnection oleDbCon = new OleDbConnection(strCon);
            OleDbCommand oleDbCom = new OleDbCommand();   
            oleDbCom.Connection = oleDbCon;     
            oleDbCon.Open();

                string strSql = "create table MySheet (队号 int, 队名 nchar(10), 队长 varchar(50), 老师 int,论文题目 nchar(10)) ";             
                oleDbCom.CommandText = strSql;
                oleDbCom.ExecuteNonQuery();

                for (int i = 0; i < dsSqlServer.Tables[0].Rows.Count; i++)
                {
                    strbSql.Append("insert into [MySheet$] values('");
                    for (int j = 0; j < 3; j++)
                    {
                        strbSql.Append(dsSqlServer.Tables[0].Rows[i].ItemArray[j].ToString() + "','");
                    }
                    strbSql.Append(dsSqlServer.Tables[0].Rows[i].ItemArray[3].ToString() + "')");
                    strSql = strbSql.ToString();
                    oleDbCom.CommandText = strSql;
                    oleDbCom.ExecuteNonQuery();

                    strbSql.Remove(0, strbSql.Length);
                }

注册Excel ISAM在“运行”对话框中:Regsvr32 C:\Windows\SysWOW64\msexcl40.dll 这个也注册成功了

string strCon =“ Provider=Microsoft.ACE.OLEDB.12.0;Data Source="+strSaveFileName+";Extended Properties=Excel 12.0 xml;HDR=Yes;";

12.0的是excel 2007，2016不兼容

Extended Properties ='Excel 12.0;HDR=Yes;IMEX=1;';单引号不能少