How can I recover my files from an external HDD, which I have accidentally formatted

How can I recover my files from an external HDD, which I have accidentally formatted

Use “Unformat” to recover files from accidentally formatted external HDD

Use “Recover partition” to recover files from accidentally formatted external HDD if partitions changed or damaged or deleted.

Use “Full Scan” mode to recover files from accidentally formatted external HDD which can not be found with “unformat” and “recover partition”,show as raw partition,partitons which are not NTFS,nor exfat,nor fat32. With deep and full scan