Use a trusted extraction program such as 7-Zip or WinRAR to open the folder.
Emulators and PC game mods are frequently packaged in .rar archives with custom names to indicate a specific build, skin, or romset. ⚠️ Critical Safety Warning Candy Cane60.rar
Before doing anything else, upload the unopened .rar file to a reputable multi-engine scanner like VirusTotal to check it against dozens of antiviruses. Use a trusted extraction program such as 7-Zip