   
                        <p:commandButton value="XLSX" styleClass="mr-2 mb-2">
                            <p:dataExporter type="xlsxstream" target="tbl" fileName="customers"/>
                        </p:commandButton>
    
                        <p:commandButton value="PDF" styleClass="mr-2 mb-2">
                            <p:dataExporter type="pdf" target="tbl" fileName="customers"/>
                        </p:commandButton>
    
                        <p:commandButton value="CSV" styleClass="mr-