Create File Systems

Hello,

I have deleted the filesystems of one of my hard drive. :oops:
The problem is when I try to create a new file systems on this HDD, openmediavault proposes me to format the hard drive and of course I do not want to
How could I get back all my data on this hard drive?

I tried software such as testdisk but I do not have file systems, thus no way to repare it :roll: I can see my partition but not the file systems, which is normal.
I also tried to plug my HDD on my windows computer and tried to read the data through ext2fsd but my HDD filesystem is RAW.

Please if you have any idea on how I could get my data back it could great!

Thanks in advance

I did it by mistake... I know this is not the best idea I've got in my life.... :lol:

Any good data recovery to recommend me?

Basically I have launched testdisk, which is able to recover data lost... I just have to wait.
Thanks for your answer.