Preciso pegar o excel gerado pelo XSSFWorkbook e enviar por email, salvar em disco ou salvar no bd

//pode testar com host do outlook : smtp-mail.outlook.com
        String host = "smtp.gmail.com", user = "email para autenticacao", password = "senha do email";
        int port = 25;
        Properties props = new Properties();
        props.put("mail.smtp.host", host);
        props.put("mail.smtp.port", port);//se for testar local tem que abrir essa porta no firewall
        props.put("mail.debug", "true");
        props.put("mail.smtp.password", password);
        props.put("mail.smtp.auth", "true");
        props.put("mail.smtp.starttls.enable", "true");
        //props.put("mail.smtp.EnableSSL.enable", "true"); caso o servidor de email queira o protocolo de criptografia SSL descomente esse e comente o de cima que TTL

        Authenticator auth = new Authenticator() {
            // override the getPasswordAuthentication method
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(user, password);
            }
        };
        Session session = Session.getInstance(props, auth);
        MimeMessage message = new MimeMessage(session);
        message.setFrom(new InternetAddress("email de envio"));
        message.setRecipient(RecipientType.TO, new InternetAddress("email de destino"));
        message.setSubject("E-mail com anexo");
        message.setText("arquivo pdf anexado!", "UTF-8"); // as "text/plain"
        message.setSentDate(new Date(System.currentTimeMillis()));
        //anexando arquivo --------------------
        MimeBodyPart messageBodyPart2 = new MimeBodyPart();

        String filename = "F:\\CAMINHO_DO_ARQUIVO\\VS-vs-SO.pdf";//change accordingly  
        DataSource source = new FileDataSource(filename);
        messageBodyPart2.setDataHandler(new DataHandler(source));
        messageBodyPart2.setFileName(filename);

        Multipart multipart = new MimeMultipart();            
        multipart.addBodyPart(messageBodyPart2);

        message.setContent(multipart);
        //--------------------------

        Transport transport = session.getTransport("smtp");

        transport.connect(host, port, user, password);
        transport.send(message);
        transport.close();
        System.out.println("e-mail enviado com sucesso");

<dependency>
        <groupId>org.apache.commons</groupId>
        <artifactId>commons-email</artifactId>
        <version>1.5</version>
    </dependency>

String prefix = "exampleTempFile";
  String suffix = ".txt";
        
  //Creating a temp file
  Path tempFilePath = Files.createTempFile(prefix, suffix);
  
  //o caminho ta aqui ele independe de OS
  System.out.println("Temp file created: "+tempFilePath.toString());
  //Deleting the file
  Files.deleteIfExists(tempFilePath);