I’d like to understand more about the callbackFunction and how it works (reference: https://www.htmlelements.com/angular/demos/gantt/export/#toc-exportdata). Could you explain how we can use this function to format exported data? Also, is it possible to format dates within the exported data using the callback?
The callback function returns the exported data. It cannot be used for formatting purposes. The export process at present exports the dates to ISO 8601 date format.