The best software to recover deleted files in OS X 10.11 Although recovering those deleted files may seem like a strenuous and very complicated task, the good news is that you can recover all your files in a fairly simple way and we will show you how to recover deleted files in OS X 10.11. Deleting files is a recurring process that we use to free up space on the hard drive or external drive or to get rid of files that we do not need although sometimes we end up accidentally deleting important files from our Mac.