Large game files are often split into smaller "parts" (like .part1, .part2, etc.) to make them easier to upload and download. This specific file is the of the compressed game data. How to install it
Repack installers often trigger "false positives" in antivirus software because of how they compress data. You may need to temporarily disable your antivirus or add the install folder to your exceptions list.
If you are seeing a file named , you are likely dealing with a split-archive download of the game Cuphead from the popular repacker, FitGirl.