Convert html table into XLSX [closed]

I can only convert to .xls or .pdf but I need .xlsx . The simpler the code, the better.

------ Example requested ------

I use the Salesforce platform, it has some changes in relation to the html but I managed to adapt perfectly, without any problem.

<!--IMPORTAÇÕES NECESSÁRIAS-->
TODAS IMPORTAÇÕES SÃO ENCONTRADAS NO SITE DO COMPONENTE
https://www.travismclarke.com/tableexport/ -->

    <apex:includeScript
'value="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js" />
    <apex:includeScript value="{!$Resource.xlsxcoremin}"/>
    <apex:includeScript value="{!$Resource.Export2ExcelJS}"/>
    <apex:includeScript value="{!$Resource.TableExportJS}"/>
    <apex:includeScript value="{!$Resource.TableExport2JS}"/>
    <apex:includeScript value="{!$Resource.FileSaverJS}"/>'


'<table id="tabela" style="width:100%">
            <tr>
                <th>CABEÇALHO</th>
            </tr>
            <tr>
                <apex:repeat value="{!registro}" var="reg">
                    <td><apex:outputText value="{!reg.Name}"/></td> 
                    <td><apex:outputText value="{!reg.Complemento__c}"/></td>
                    <td><apex:outputText value="{!reg.Data__c}"></apex:outputText></td>
                    <td><apex:outputText value="{!reg.Banco__c}"></apex:outputText></td>
                </apex:repeat>
            </tr>
        </table>
<input id="clickMe" type="button" value="clickme" onclick="exibeOpcs();" />
'

'function exibeOpcs(){    
            $("#tabela").tableExport({
                headings: true,
                footers: true,
                formats: ["txt", "xlsx"],
                fileName: "Planilha",
            });
        }'