I have published reports from Power BI desktop to Power BI service. I want the users to be able to do their own analysis with the datasets/data model BUT I don't want them to have the ability to download the .pbix file.
Note: I am not using premium capacity. I have tried the permissions as well. If the user is a "Viewer" then they cannot access the datasets. If they are members and contributor then yes they can access the data set, but are also able to download the .pbix file which is what I don't want them to do.
Option 1
The only option is to disable "Export data" option under Admin Portal.
Turning off this option will prevent the whole organization from Exporting data to Excel/CSV , as well as Downloading PBIX file.
The admin portal is accessible to all users who are Global Admins in Office 365 or have been assigned the Power BI service administrator role.
Option 2
Are the members of the O365 group set as members or admins in your app? I had the same issue with one of my reports and changing the users in the group to members took away their ability to download the report as a .pbix.
You can check this by going to the Edit Workspace (same place you set Members can only view Power BI content) and checking the list of users. Each user should have either Admin or Member next to their name. If you do not want the user to have the capability to download the file, you should set them as a member.