I have implemented ExportAppData rule to block the export to excel facility in QMC of Qlik Sense now my requirement is that
I want to give export to excel download facility for certain users.
you could add to your existing rule condition saying that it is blocked if user name (maybe some group would be better) is differen from... . Something like
((user.name!="user1" and user.name!="user2"))
Retrieving data ...