date Date

The date when the workbook is created. Defaults to new Date().

Example - setting the date

<script>
var workbook = new kendo.ooxml.Workbook({
  date: new Date(2014, 5, 18),
  sheets: [
      {
          rows: [
              { cells: [ { value: "foo" } ] }
          ]
      }
  ]
});
workbook.toDataURLAsync().then(function(dataURL) {
  kendo.saveAs({
    dataURI: dataURL,
    fileName: "Test.xlsx"
  });
});
</script>