Could you provide more context, such as the or where you first saw the name "Nrifyc" ? Zip and unzip files - Microsoft Support
If this relates to a specific course, company, or obscure research field, the file may be hosted on a private portal like GitHub or a university repository.
If you meant "NLTK" (Natural Language Toolkit) or "PyTorch" , these are common libraries often mentioned in research papers that require downloading data via ZIP.