: Since it isn't a famous literary work or a standard system file, it is likely a specific file created by a user or a small project.
Use the 7-Zip Official Website to download the tool for Windows. Try Keka if you are using a Mac. Check PeaZip for an open-source alternative. To provide the exact text, I would Linsen.7z
To help you find the content you're looking for, could you share where you encountered this file name? : Since it isn't a famous literary work
If you'd like to the contents of a file with this name: Linsen.7z