solely see 2020 in it.
Hexadecimal 20 is the ASCII house character. In case your file comprises nothing however 20 then it comprises no helpful knowledge and no helpful knowledge can ever be extracted from it†.
is it possibly encrypted?
Encrypted knowledge usually appears to be like like a totally random sequence of hexadecimal values between 00 and FF. In case your file comprises nothing apart from repeats of 20, it isn’t encrypted.
pockets.dat file is 180mb
Then I suppose you won’t have checked out each byte to confirm that all are hexadecimal 20. I’d use a program or script to see if someplace in that 180 MB is any byte sequence apart from repeats of hexadecimal 20. However the probability of restoration appears small.
† you may encode a small quantity, e.g. 7458 as a byte and a depend of repeats however that is irrelevant within the context of recovering a Bitcoin pockets file
