The _DSC5650.ARW - Google Drive file is corrupt and the other one can be opened, Exif data can be accessed as well.
I believe it is as issue with the memory card.You could try putting another card and see if that makes a difference.
but I still need to work with that files!
how to solve the problem?
There are a few extra bytes at the start of the corrupted file (see before the II*) that shouldn't be there. If you can figure out a way top remove those it might fix it. Akash is right that this is probably a problem with your memory card.
Header on _DSC5650.ARW:
Header on _DSC5577.ARW:
I used HexEdit in order to delete those few byte
now the files are editable!
thanks a lot