Many software packages provide an ISO disk image with their software on it. This can be burned to a DVD, but it doesn’t have to be if you just want to access the files on the ISO image. These steps will mount an ISO file and allow the files within the ISO to be viewed as if they were just a normal file hierarchy.
# Create a folder where the files will show up.
mkdir ~/temp_mount
# Mount the ISO image on the mount location.
sudo mount -o loop MY-ISO-NAME.iso ~/temp_mount
You will need sudo access to run the second command above (or to be logged in as root).
After the mount command, the files from the ISO image will be visible underneath the ~/temp_mount folder.