Use the web portals of major carriers like FedEx, UPS, or DHL. These platforms offer the most accurate, real-time data without requiring a software download.
Search the Mac App Store for highly-rated tracking apps. Tools like Deliveries or Parcel are popular choices that sync across your Apple devices and provide push notifications.
Many legitimate courier tracking services are web-based or offer official mobile apps, making a standalone desktop .rar file highly suspicious. Safe Alternatives for Package Tracking on Mac
Use a reputable security tool like Malwarebytes for Mac to scan the file and your system.