<https://bytescout.com/articles/barcode-suite-vb-net-add-doughnut-chart-with-spreadsheet-sdk#webpage>
<http://schema.org/dateModified>
"2019-09-26T06:58:32+00:00"^^<http://schema.org/Date>
<https://bytescout.com/articles/barcode-suite-vb-net-add-doughnut-chart-with-spreadsheet-sdk>