: It is the highest supported version for many iconic machines, including the Late 2009 MacBook and Mid 2010 MacBook Pro .

The MacOS High Sierra 10.13.6.iso file is a disk image file that contains the installation files for the operating system. You may need this file for various reasons, such as:

It significantly speeds up common tasks like duplicating files and finding the size of large folders.

If you want, I can: