There are several popular "Cotton Candy" and "Candy Cane" themed 60% mechanical gaming keyboards on the market. Files ending in "60.rar" are frequently used by custom keyboard enthusiasts to share RGB profiles, macro mappings, or PCB firmware files.
Where did you this specific archive file? Candy Cane T1 Pro 60% Gaming Keyboard - Alt Customs Candy Cane60.rar
Use a trusted extraction program such as 7-Zip or WinRAR to open the folder. There are several popular "Cotton Candy" and "Candy