What you can do is, that you build a helper entity that you use for the export and then build the data as you want them to export. Finaly use the new entity for the export.
You can do this by creating an helper entity to export the all data's.
and retrieve all the data’s from the various entities and create an object to copy the retrieved data’s to the created object of helper entity later you have to configure it in to excel exporter.
Thank you so much for your valuable reply Gerrit Kiefer. Yeah I achieved as you mentioned like this, it’s working fine.