How would I do this?
I have attempted double clicking on it (obviously) and I get an error of it saying that its not recognized.
My second though was using Disk Utility (the app) to try and change it from an img to an iso. The same error appeared saying that it was not recognized.
My last idea was to do some research on mounting from the terminal. The command that I used was
mount -o loop userdata.img /mnt/testcache
The result of that was:
mount: You must specify a filesystem type with -t.
After that I just ran out of idea and ran out of search queries to try.