This demo provides you the ability to configure the visibility of the different built-in toolbar options of the spreadsheet control. Just check of uncheck the desired option from the Configuration menu to show or hide it.
Note the Save button functionality, which allows you to apply the changes performed on the data, directly to the datasource that the control is supplied with.
R1 2020 SP1 release introduces 4 new built-in toolbar options: Open, ExportAs, InsertImage and InsertComment.