Configure the spreadsheet created by java with jxl

I'm developing an application that generates an excel sheet with data collected from other files, for this I'm using jxl, the application is already generating the worksheet correctly, however I need to change some of the settings of these worksheets, such as the size of the column, I also need to place the entire worksheet in such a way that the information is displayed centrally. But the only thing I could change was the font style and background color, I did not find where I can make these other modifications. If you can help me, thank you.

Update

Code (with headers but columns not yet aligned):

if (arquivos != null) {
    for (int x = 0; x < arquivos.length; x++) {
        if (arquivos[x].getName().endsWith("pdf")) {
            File f = arquivos[x];
            try (RandomAccessBufferedFileInputStream acesso = new RandomAccessBufferedFileInputStream(f.getAbsolutePath())) {
                PDFParser parser = new PDFParser(acesso);
                parser.parse();
                COSDocument cosDoc = parser.getDocument();
                PDFTextStripper pdfStripper = new PDFTextStripper();
                PDDocument pdDoc = new PDDocument(cosDoc);

                WritableWorkbook planilha = Workbook.createWorkbook(new File(outPath + f.getName().replace(".pdf", ".xls"))); // Cria um arquivo XLS
                WritableSheet aba = planilha.createSheet("Lote " + f.getName().replace(".pdf", ""), 0); // Nome da aba do arquivo XLS

                String cabecalho[] = new String[4];
                cabecalho[0] = "Página";
                cabecalho[1] = "Autorização";
                cabecalho[2] = "Status Leitura";
                cabecalho[3] = "Retorno Ticket Log";

                Colour bckcolor = Colour.DARK_BLUE; // Cor do fundo do cabeçalho
                WritableCellFormat cellFormat = new WritableCellFormat();
                cellFormat.setBackground(bckcolor);

                cellFormat.setAlignment(Alignment.CENTRE);

                WritableFont fonte = new WritableFont(WritableFont.ARIAL); // Formato da fonte do cabeçalho
                fonte.setColour(Colour.WHITE); // Cor da fonte do cabeçalho
                cellFormat.setFont(fonte);

                WritableCellFormat cellFormat2 = new WritableCellFormat();
                cellFormat2.setAlignment(Alignment.CENTRE);

                for (int z = 0; z < cabecalho.length; z++) {
                    Label label = new Label(z, 0, cabecalho[z]);
                    aba.addCell(label);
                    WritableCell cell = aba.getWritableCell(z, 0);
                    cell.setCellFormat(cellFormat);
                }

                List<String> linhasGravadas = new ArrayList<>();

                for (int i = 1; i <= pdDoc.getNumberOfPages(); i++) {
                    pdfStripper.setStartPage(i);
                    pdfStripper.setEndPage(i);
                    String parsedText = pdfStripper.getText(pdDoc);

                    String aut = "";
                    String Status = "";
                    String pagina = Integer.toString(i);


                    Label label = new Label(0, i, pagina);
                    aba.addCell(label);

                    label = new Label(1, i, aut);
                    aba.addCell(label);

                    label = new Label(2, i, Status);
                    aba.addCell(label);
                }

                planilha.write();
                planilha.close();
                acesso.close();
            } catch (WriteException ex) {
                Logger.getLogger(testeXML.class.getName()).log(Level.SEVERE, null, ex);
            }
            f.renameTo(new File(outPath , f.getName()));
        }
    }
}