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Mac OS Extended format
The Mac OS Extended (Journaled) format file system is the default file system for macOS 10.12 or earlier. It uses a journalling technique to help protect the integrity of a hierarchical file system and provides an encryption option you can use to protect data on a disk.
In macOS 10.13, it was replaced with Apple File System (APFS), the default file system for Mac computers with solid state drives.