External hard disk drive data recovery after format

In the past, people have to hold piles of files when go out. But now we just need to carry an external hard disk drive with us. But it would be a huge loss if the external hdd was formatted accidentally or intentionally. As we all know, all files saved on the external hard disk drive would be erased if it was formatted. Is it possible to get them back? The answer is certainly yes now. We have the ability to start external drive format recovery to get what we need back form the formatted external hard disk drive.