:commandButton ajax="false" value="Print"  styleClass="noPrintButton" style="float: right;" >
                            <p:printer target="panelPrint" />
                        </p:commandButton>
                        <p:commandButton value="Excel" ajax="false" styleClass="noPrintButton" style="float: right;">
                            <p:dataExporter type="xlsx" target="tbl" fileName="Report by Referring Doctor"
                                           
                                            