This looks nice :) Please check your export settings via Mac OS. Because as a result of the download, there is only a folder without any app. Nothing to open though.
No problem to unpack the rar, I got a folder with various content by that. But somehow the app seems not to be linked to any the other files in the folder. Maybe checking export-settings may help. Anyway, that's an issue, that I do find quite often :)
