If you want to know what the file is without infecting your computer: 1. Use a Sandbox
If you have encountered a file named Hacker.zip (or Hacker.exe disguised as a zip), it is highly likely a or part of a security simulation/game . Soubor: Hacker.zip ...
If you are playing a hacking simulator (like Hacknet or a CTF challenge): If you want to know what the file