If you downloaded this file from an untrusted source or a third-party "leak" site, please be cautious:
Because this file name is very specific and not associated with a mainstream release, there are no professional "reviews" available in public databases. To help you better, I can look for more information if you can clarify a few details:
Use a tool like VirusTotal before opening.
Is "Nyl" the name of a specific animator or 3D artist you follow?
Be wary of .exe or .scr files hidden inside the .zip .