A sparkline is a tiny chart in a worksheet cell that provides a visual representation of data. Use sparklines to show trends in a series of values, such as seasonal increases or decreases, economic cycles, or to highlight maximum and minimum values. Position a sparkline near its data for greatest impact. Learn how to add sparklines to an Excel worksheet in this video tutorial from Microsoft.

Learn more: https://support.microsoft.com/en-us/office/use-sparklines-to-show-data-trends-1474e169-008c-4783-926b-5c60e620f5ca