Thanks for contacting support.
We have checked the link which you have shared and observed that it enhances the Excel sheets in terms of visualizing entities relationships. However, as far as your requirements related to Excel sheets and Charts are concerned, you may please check Aspose.Cells and Aspose.Diagram APIs which may help you achieve them.
In case you are unable to explore required features in API documentation, you may please share some more information like your sample data and an expected output document. We will test the scenario in our environment and share our feedback with you accordingly.