You can enable Nested Grid exports when you want to export in XLS format. This option is useful when you want to generate complete XLS reports.
To enable Nested Grid export, go to the menu Nested Grid -> Settings.
Then, in the XLS option, you can define whether nested grids will appear in XLS. You can still set it individually if the application has more than one nested grid. In this case, we must use the XLS -> Set individually option and the display configuration should be done individually in each nested grid, as in the image below.
After you configure the options, you can run the application and check the results.