: "Usnip" might be a custom name for a Universal Snippet manager or a collection of LaTeX/Markdown templates used to "prepare a paper" for publication.
: The official tool for creating and opening RAR archives.
If you are following a specific tutorial or academic project (such as a GitHub repository or a research dataset), "Usnip" is often the name given to a set of code snippets or configuration files packaged as a archive to save space.
Knowing if this is for a programming class , a specific software tool , or a research template will help me find the exact link for you. WinRAR download free and support: WinRAR
Check the original source where you were instructed to "prepare paper." Look for a "Downloads" or "Resources" section on that specific platform. 2. File Compression Tools