You will need a utility like WinRAR , 7-Zip , or The Unarchiver to extract the .rar file and see the actual paper (likely a PDF) inside.
Searching for "eys132" does not return a direct match in major academic databases like PubMed, ArXiv , or Google Scholar. This naming convention is often used by: eys132.rar
Knowing the topic (e.g., engineering, biology, etc.) would help in identifying the source. You will need a utility like WinRAR ,