Option to only extract 1 specific .dat file instead of an entire directory

[Sleuteltje]

Would be great if objexport <path_to_dir_or_dat_file> could be implemented.

Example usage: objexport /path/to/dir /output/dir would export all dat files in the specified directory (as it currently does)

objexport /path/to/datfile.dat /output/dir would export only the specified dat file.