I made a mistake in which I erased an external drive with some originals .photoslibrary files that were not backuped.
I am using in this moment photorec to retrieve the lost files (appointed as being placed in a HFSX partition by R-Studio for mac (do not confuse it with the statistics software R-Studio).
The point is that in the outcome of photorec software I am receiving thousands of files completely messed up, obviously without names and dates, and I'm wondering that if I could retrieve only .photoslibrary files, usually easily located for their often gigabyte-sized characteristic, it would be the best solution ever.
The point is: apparently none of these file-recovery softwares are able to locate and to find .photoslibrary files, perhaps because it is a package or treated like a directory in some way..
I would appreciate any way of locating and restoring .photoslibrary files or if I could in some way rebuild my HFSX partition securely in order to access my lost drive again.