Askabouttech shows how to mount an ISO with Daemon tools using Ubuntu. Right click on Daemon Tools in the tool bar and select "virtual CD rom". This will bring up a side window in which you will click "device". This will open another side window where you will click "mount image". This will open a new window. Make sure you're looking in desktop and open the Ubuntu ISO file. This should open up a new window where you have the option of running it or viewing the files. When you're finished, follow the same steps from before, but this time click "unmount image" instead.