I find this deeply disturbing. We are in 2017 and a significant number of customers use Macs. Excel on Macs are widely used as well and if not for the lack of Report Builder, I would not need to use VMWare or any other virtual machine.
Can you guys at Adobe get your act together and build something that can be immensely useful to your customers?
Report Builder currently is only available for Windows operating system. If you don't have a windows machine at your disposal, I would recommend you to use Analysis Workspace which gives you equivalent amount of flexibility. Thanks!