https://www.extendoffice.com/documents/excel/2174-excel-doughnut-chart.html
This page explains how to create a doughnut chart in Excel, enhancing data presentation with visually appealing doughnut charts.
doughnut chartcreateexcel
https://docs2.bunifuframework.com/docs/bunifu-charts/chart-components/bunifu-doughnut-chart
Pimp up your app data visualization with single and multi-layered doughnut charts.
doughnut chartframework docsbunifu