it is possible that your deleted files may be recovered from your external hard drive as long as you select appropriate recovery software and take right steps. AppleXsoft File Recovery for Mac is just such a software, it can restore files from external drive on Mac OS X for whatever reasons, no matter files deleted or external hard drive formatted, even your external drive got corrupted. for more detailed, please read the online guide at http://www.applexsoft.com/howto/recover-files-from-external-hard-drive.html Please follow the steps below to restore files from external hard drive on Mac: Step 1: Connect the external hard drive to your Mac, and install the program. Step 2: Launch AppleXsoft File Recovery for Mac, and Select the external hard drive from the left drives list. Step 3: Choose a module according to the reason for data loss on your external hard drive. "Deleted files scan" is for you to undelete deleted files, "Lost files scan" is for recover lost files, or recovering files in the case your volume is corrupt or has been initialized. and "Lost volumes scan" is used when partition is lost, or deleted. Step 4: Once the scanning procedure is finished, You can preview and select your desired files and click "Save" to restorefiles.