Since this is a multi-part RAR file (indicated by .part2 ), the original file was likely very large and split into smaller pieces for easier sharing or storage. You will most likely need all parts of the archive (such as MDL-0010-2.part1.rar , MDL-0010-2.part3.rar , etc.) to successfully extract its contents.
Use tools like WinRAR, 7-Zip, or The Unarchiver (for Mac) [1]. MDL-0010-2.part2.rar
The .part2.rar extension itself is not malicious. However, it is always a best practice to scan any new or suspicious file with an antivirus program, especially one downloaded from the internet. Since this is a multi-part RAR file (indicated by