for (int j = 0; j < model.getRowCount(); j++) {
	String conteudo = null;
	for (int i = 0; i < 5; i++) {
   		if (i == 4) {
     	   	conteudo += (model.getValueAt(j, i)) + ";";
   		} else {
        		conteudo += (model.getValueAt(j, i));
   		}
	}



        String nomeArq1 = "teste.txt";
        try {
            FileWriter fout = new FileWriter(nomeArq1);
            PrintWriter pout = new PrintWriter(fout);

            pout.println(conteudo);

            pout.close();
            fout.close();

        } catch (IOException io1) {
            System.out.println("Erro");
        }