An Apple Disk Image can be structured according to one of several proprietary disk image formats, including the Universal Disk Image Format (UDIF) from Mac OS X ...
In the Disk Utility app on your Mac, select a disk, volume, or connected device in the sidebar. · Choose File > New Image, then choose “Image from [device name].
Open the downloaded .iso/.dmg file with the Disk Image Mounter utility, which is installed on all macOS computers. · The Disk Image will be mounted as a virtual ...