Чтение таблицы Excel через OleDbConnection

 private void button1_Click(object sender, EventArgs e)
        {
            textBox1.Clear();
 
            string path = Directory.GetCurrentDirectory() + @"\таб.xlsx";
 
            DataTable dt = new DataTable();
            OleDbConnectionStringBuilder csbuilder = new OleDbConnectionStringBuilder();
            csbuilder.Provider = "Microsoft.ACE.OLEDB.12.0";
            csbuilder.DataSource = path;
            csbuilder.Add("Extended Properties", "Excel 12.0 Xml;HDR=YES");
 
            using (OleDbConnection connection = new OleDbConnection(csbuilder.ConnectionString))
            {
 
                connection.Open();
                string selectSql;
                selectSql = @"SELECT * FROM [Sheet1$]";  //???
                //selectSql = @"SELECT * FROM [Sheet1$.Range[""A1:B2""]]";
                //selectSql = @"SELECT * FROM [Sheet1$.Range[A1:B2]]";
                //selectSql = @"SELECT * FROM [Sheet1$].[Range[A1:B2]]";
                //selectSql = @"SELECT * FROM [Sheet1$.Range[A1:B2]$]";
 
               
                using (OleDbDataAdapter adapter = new OleDbDataAdapter(selectSql, connection))
                {
                    adapter.Fill(dt);
                    dataGridView1.DataSource = dt;
                }
                connection.Close();
            }
        }

sql = @"SELECT * FROM [Лист1$A1:B10]";

selectSql = @"SELECT * FROM [Sheet1$A1:B10]";