                                <p:dataExporter type="xlsx" target="tblBills" fileName="newly_added_report"  />
                                    </p:commandButton> 
                                </h:panelGrid>
                            </h:panelGroup>
                        <p:panel id="gpBillPreview" styleClass="noBorder summeryBorder">

                            <p:dataTable id="tblBills" value="#{mdInwardReportController.bills}" var="b" style="width: 100%">
                                <f:fa