How to Open an ISO File in Mac

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ISO files are disk images of physical disks like CDs and DVDs.

Disk images are perfect software copies of a physical disk like a CD, DVD or hard disk. A disk image contains all of the data on a physical disk with an identical file structure. The ISO format is a very common format for disk images. Mac programs often use the CDR or DMG format for disk images, however cross-platform downloads as well as CD and DVD disk images may come in the ISO format. The Finder in the Mac OS X operating system can mount ISO images.


Step 1

Locate the ISO file in the Finder.

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Step 2

Double-click on the ISO file to mount it.

Step 3

Go to the "Devices" menu on the left side of the Finder and click on the ISO file to view the contents in the main Finder window.