Because this is labeled .part3.rar , you cannot open it in isolation. You must have all preceding and subsequent parts (e.g., .part1.rar , .part2.rar , etc.) in the same folder to successfully extract the contents.
You will need an extraction utility like WinRAR or 7-Zip to process these files. Open part1.rar first, and the software will automatically chain the remaining parts together. Usage Notes sc23263-FNAFHWv121.part3.rar
Files of this nature sourced from third-party sharing sites carry a high risk of malware. It is strongly recommended to scan the archive using an updated antivirus or tools like VirusTotal before execution. Because this is labeled
