A donut chart is a pie chart that has a small circular cutout in the middle, turning the pie into a hollow donut. Create a Donut Chart in Google Sheets.It is just like Microsoft Excel, but Google Sheets allows multiple users to use and edit the sheets at once. Here you can create various sheets and charts, share them among your friends, colleagues and even save them on your system in various formats. Google Sheets is one of the best office tools provided by Google.