So open up the terminal now (if you don't know where it's located on your Mac, just search up 'terminal' in spotlight). The terminal, if you weren't aware, is an application built into macOS that allows you to access the raw UNIX interface behind the operating system. Hiding and un-hiding macOS's hidden files can only be accomplished via a terminal command. Here you should have the option to 'Open World Folder', which will open up a directory inside your Minecraft installation directory, and navigating up one folder will let you go to the location where you have your saves. Instead, you'll need to click on 'Edit' here. Select one of your Minecraft worlds, but don't load into the game. Firstly, you just need to start up the game as you usually would whenever you're getting ready to play.

This first, easier method makes use of a feature built into the game to make finding your save files easier than usual.

Step Four: Re-hide the Hidden Files (optional).

Step Three: Locate the Minecraft World Files.

Step Two: Execute the “un-hide” Command.

Minecraft tlauncher mac