An instruction video on adding data from Excel can be found here.

To paste data copied from Excel, access the copy dialog via the copy/paste table button. The buttons are visible on mouse-over.

In the copy/paste dialog, select the second tab.

Contents are pasted from an Excel Worksheet without the header.

The data must adhere to the schema defined by the Editable Grid.

Choose whether to add the rows or to replace the whole table.