You must have all parts in the same folder before you begin. If one is missing or corrupted, the extraction will fail.
Many large RAR sets are password-protected by the uploader. Check the source site where you found the link for a text string or a "password.txt" file. 4. Safety First OFSTERENR-MW.part3.rar
If you are focused on Part 3 because it’s giving you trouble, here are the most common fixes: You must have all parts in the same folder before you begin
If the extracted file is an .exe or .iso you weren't expecting, proceed with caution. proceed with caution.