title: Can't export to excel a Syncfusion pivot table with enableVirtualization = true in Angular
body: <p>Here is the component.html code.</p>
  <pre><code>&lt;ejs-pivotview #pivotview id='PivotView'
  [dataSourceSettings]=dataSourceSettings
  allowExcelExport='true'
  allowConditionalFormatting='false'
  allowPdfExport='true'
  showToolbar='true'
  allowCalculatedField='true'
  showFieldList='true'
  showGroupingBar='true'
  [chartSettings]='chartSettings'
  expandAll='true'
  exportAllPages='true'
  enableVirtualization='true'
  height='500'
  [gridSettings]='gridSettings'
  [displayOption]='displayOption'
  locale='es'
  [toolbar]='toolbarOptions'
  width=&quot;getWidth()&quot;
  &gt;
  </code></pre>
  <p>And in component.ts</p>
  <pre><code>import {
      FieldListService, CalculatedFieldService,
      ToolbarService, ConditionalFormattingService,
     ToolbarItems, DisplayOption, GroupingBarService,
     IDataOptions, VirtualScrollService
  } from '@syncfusion/ej2-angular-pivotview';
  //...
  //...
  declare var require: any;
  @Component({
    selector: 'app-repo-pivote',
    templateUrl: './repo-pivote.component.html',
    //encapsulation: ViewEncapsulation.None,
    styleUrls: ['./repo-pivote.component.css'],
    providers: [CalculatedFieldService, ToolbarService, ConditionalFormattingService, FieldListService, GroupingBarService,VirtualScrollService]
  })
  </code></pre>
  <p>Data is over 30K rows.</p>
  <p>With this error.</p>
  <p><a href="https://i.stack.imgur.com/uETcW.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/uETcW.png" alt="enter image description here" /></a></p>
  <p>When I drop the enableVirtualization parameter it exports well.</p>
  <p>UPDATE</p>
  <p>This is a simple project that shows the problem.</p>
  <p><a href="https://stackblitz.com/edit/angular-ivy-747r19?file=src/app/app.component.html" rel="nofollow noreferrer">https://stackblitz.com/edit/angular-ivy-747r19?file=src/app/app.component.html</a></p>