Nad.rar | Lor

: It is common in research for datasets or supplemental materials to be shared as .rar files with abbreviated names.

Where did you ? (A specific website, a citation, or a GitHub repo?)

: "Lor" and "Nad" could be shorthand for specific project names, researchers, or locations (e.g., LOR for Layered Object Repository or NAD for Nicotinamide Adenine Dinucleotide ).