Sudoku Load Game

private void loadGame() {
            OpenFileDialog fd = new OpenFileDialog();
            fd.Filter = "sudoku files (*.sudoku)|*.sudoku";
            if (fd.ShowDialog() == DialogResult.OK)
            {
                String[,] csvFields = GDK.CSV.read(fd.FileName);
                for (int i = 0; i < 9; i++)
                {
                    for (int j = 0; j < 9; j++) {
                        if (csvFields[i, j] != "x")
                        {
                            fields[i, j].Text = csvFields[i, j];
                            fields[i, j].Enabled = false;
                        }
                        else
                        {
                            fields[i, j].Text = "";
                            fields[i, j].Enabled = true;
                        }
                    }
                }
            }
            else loadGame();
        }