data corruption – Corrupted Photo format

Im hoping someone here can help.
So in a nutshell

NO.1 My hard drive stopped working so then i…
No.2 used recovery software to retrieve files… then
No.3 I tried to view these but the format had change to ”Sony Digital Camera Image”
The files are no longer a Jpeg or raw or anything usable to load onto any program.

Any suggestions would be greatly appreciated

Thanks in advance