ISO file extension

CD/DVD Disc Image

Files with an .ISO extension are images of a CD/DVD ROM, and are considered to be the standard file format for disc images across all platforms. Due to the format's popularity, ISO files can be both read and created by most CD/DVD burning applications.

If you want to read an .ISO file, you can use a CD/DVD emulation tools such as Daemon Tools or Alcohol 120%. These tools allow you to mount the CD/DVD image as if it were in your actual CD/DVD drive.