Since this is "Part 03," you typically need all parts (Part 01, Part 02, etc.) in the same folder to extract the full contents.
Knowing if it's related to engineering, medical research, or software development might help identify the "IFRG" acronym. sc24240-IFRGEv134.part03.rar
(e.g., a company portal, a specific professor's site, or a file-sharing service). Since this is "Part 03," you typically need