Use WinRAR (the original software for this format) or the free, open-source 7-Zip . Mac Users: Use The Unarchiver or Keka .
Use an online scanner like VirusTotal to check the file against multiple security databases before extracting. AN (3).rar
To see what is inside "AN (3).rar," you will need an extraction utility since Windows and macOS do not always support RAR files natively: Use WinRAR (the original software for this format)