After extraction, you should see the actual file(s) (likely PDFs, based on the filename). You can open these with any standard PDF viewer, such as Adobe Acrobat Reader or a web browser.
: Only download and extract .rar files from trusted sources. If you're unsure about the file's origin, scan it with antivirus software before opening the extracted contents. Download 407OPDFRP rar
Since Windows and macOS often require third-party tools for RAR files, you should download a free, open-source utility like 7-Zip or a trial version of WinRAR. After extraction, you should see the actual file(s)