It is generally to download or review files like "Patch part05.rar" unless you are 100% certain of the source , as these are frequently used to distribute malware. If you are writing a review for a forum or community site, Review: Patch Part 05 (.rar)

Never disable your antivirus or add "exclusions" just to run a patch, as this is a common tactic used by malicious actors to bypass your system's defenses.

(e.g., "Standard multi-part RAR extraction; required all previous parts to work.")

Use a tool like VirusTotal to check the file against dozens of antivirus engines simultaneously.

(e.g., "Fixed the specific issues in version X.X as promised.")

Do you have the of this archive, or would you like help scanning the file for safety?

If the file is an .exe disguised as a RAR (Self-Extracting Archive), it is higher risk because it executes code the moment you "open" it.