如何使用jQuery DataTables将嵌套表“ td”内的数据组导出到Excel？

如何解决如何使用jQuery DataTables将嵌套表“ td”内的数据组导出到Excel？

我真的很想将嵌套表作为CSV文件导出到Excel。如何使用DataTables将嵌套表数据导出到Excel？我在下面给出了我的代码。

我想要如下输出

$(document).ready(function() {
  var myData = [{
    employee: "Bob Smith",project: "Project",role: "Leader",itemno: "ABCDF",amount: "$50.00",jobtitle: "Software Engineer"

  },{
    employee: "Tom Peterson",project: "Project1",role: "Assistant",itemno: "ABCDEFG",amount: "$40.00",jobtitle: "Business Analyst"
  }];

  var myColumns = [{
      title: "Employee",data: "employee"
    },{
      title: "<table class='table table-bordered table-sm'><thead><tr><td>Item Details</td><td>Amount</td></tr></thead></table>",data: null,render: function(data,type,row,meta) {
        var subtableHtml = "<table class='table table-bordered table-sm'>";

        subtableHtml += "<tbody>"
        subtableHtml += "<tr>";
        subtableHtml += "<td>" + data.project + "</br>" + data.role + "</br>" + data.itemno + "</td>";
        subtableHtml += "<td>" + data.amount + "</td>";
        subtableHtml += "</tr>";

        subtableHtml += "</tbody></table>";
        return subtableHtml;
      }
    },{
      title: "Designation",data: "jobtitle"
    },];

  $('#dataTable').dataTable({
    searching: false,paging: false,data: myData,columns: myColumns,dom: "<'row'<'col-sm-12 col-md-4 col-lg-4 col-xs-12'l><'col-sm-12 col-md-4 col-lg-4 col-xs-12 text-center'B><'col-sm-12 col-md-4 col-lg-4 col-xs-12'f>>" +
      "<'row'<'col-sm-12 col-md-12 col-lg-12 col-xs-12'tr>>" +
      "<'row'<'col-sm-12 col-md-12 col-lg-5 col-xs-12'i><'col-sm-12 col-md-12 col-lg-7 col-xs-12 text-center'p>>",buttons: [{
      extend: 'excel',text: '<a href="#" class="aExcel"><img src="https://upload.wikimedia.org/wikipedia/commons/thumb/8/86/Microsoft_Excel_2013_logo.svg/1043px-Microsoft_Excel_2013_logo.svg.png" style="width:25px;height:25px" class="imgExcel" alt="Excel"/></a>',tag: 'span',title: '',init: function(api,node,config) {
        $(node).removeClass('btn btn-default btn-secondary buttons-excel buttons-html5')
      },exportOptions: {
        columns: [0,1,2]
      },}]
  });
});

<link href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.5.2/css/bootstrap.css" rel="stylesheet" />
<link href="https://cdn.datatables.net/buttons/1.6.4/css/buttons.dataTables.min.css" rel="stylesheet" />
<link href="https://cdn.datatables.net/1.10.22/css/dataTables.bootstrap4.min.css" rel="stylesheet" />

<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/dataTables.bootstrap4.min.js"></script>

<script src="https://cdn.datatables.net/buttons/1.6.4/js/dataTables.buttons.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.4/js/buttons.flash.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jszip/3.1.3/jszip.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.53/pdfmake.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/pdfmake/0.1.53/vfs_fonts.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.4/js/buttons.html5.min.js"></script>
<script src="https://cdn.datatables.net/buttons/1.6.4/js/buttons.print.min.js"></script>

<div class="container-fluid">
  <div class="row">
    <div class="col-md-8">
      <h3>Nested Table Export to Excel :</h3>
      <table id="dataTable" class="table table-sm table-bordered" style="width:100%"></table>

    </div>
  </div>
</div>