Screenshot attached (file properties). I’d avoid running unknown .exe files. If you need a safe offline Angry Birds experience, look for the classic Angry Birds (Rovio Classics) – though note that Rovio delisted it in some regions.
It sounds like you’re referring to a specific offline installer file for Angry Birds . However, I need to flag a before you proceed:
Files with names like angry.birds.all-patch.offline.v1.4.exe are often – they could be cracked, patched, or bundled with malware. Only download software from trusted sources (official stores, developer’s website, Steam, etc.).