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?
Q:
How can I recover my files from an external HDD which I have accidentally formatted
My external hard drive is Transcend Military Drop Tested 1 TB USB 3.0 M3 External Hard Drive (TS1TSJ25M3).
A:
Disk formatting is the process of preparing a data storage device such as a hard disk drive, solid-state drive, floppy disk or USB flash drive for initial use. In some cases, the formatting operation may also create one or more new file systems. The first part of the formatting process that performs basic medium preparation is often referred to as “low-level formatting”. Partitioning is the common term for the second part of the process, making the data storage device visible to an operating system. The third part of the process, usually termed “high-level formatting” most often refers to the process of generating a new file system. In some operating systems all or parts of these three processes can be combined or repeated at different levels and the term “format” is understood to mean an operation in which a new disk medium is fully prepared to store files.
For recovering files from accidentally formatted external HDD, just need use Aidfile format recovery software.
Use “Unformat” to recover files from accidentally formatted external HDD.
Use “Recover partition” to recover data after accidentally formatting partition from external HDD – if external HDD partition has changed.
Use “Full scan” to restore files after accidentally formatting external HDD – if “Unformat” and “Recover partition” can not find lost files.
Use “Undelete” mode to retrieve deleted files after accidentally formatting external HDD.