If you are trying to extract this file, you will need all other parts (e.g., part1.rar, part2.rar ... part10.rar) in the same folder and a program like WinRAR or 7-Zip to extract the content.
If you can tell me or what you are trying to accomplish with it, I can provide more specific instructions or safety information.
if you are expecting this file for work or research purposes.