Hi there, for our app we’re making we’re using custom files users can save and reopen, similar to Word documents.
For Mac it’s been a bit of a rough ride but I believe I’ve set up the .plist correctly as shown:
So when I right click on a desired file and open in my app, I get this error:
The document "test.example" could not be opened. Example cannot open files in the "example" format.
I’ve put the application in the Applications folder so the plist is being recognised and registered.
This is working on Windows builds so I think it has something to do with macOS.
Any help appreciated, thank you 
Have you solve this problem yet? I’m facing the same problem when open file on macOS