QFile file("file1.txt");
	QFile file2("file2.txt");

	file.open(QIODevice::WriteOnly);
	file2.open(QIODevice::WriteOnly);

	QTextStream out(&file2);

	file.write(ui.textEdit->toPlainText().toUtf8());
	out<<ui.textEdit->toPlainText();

	file.close();
	file2.close();

1 2 3 4 5 6 7 8 9 10
10 9 8 7 6 5 4 3 2 1
123 321 123 321 123