It would not need to be particularly elegant. If the program-spreadsheet exports the right data, it can be rendered or GUI-ed separately - even by a program tha

It would not need to be particularly elegant. If the program-spreadsheet exports the right data, it can be rendered or GUI-ed separately - even by a program that watches for export file changes. Even by a spreadsheet viewer for the people who insist. A notebook lets you use various libraries or outside programs to do the rendering.