Do you have on where you found this file, such as a specific website or folder? 7-Zip - ArchWiki
Open the file with 7-Zip or WinRAR . These tools will show a file explorer view of everything inside. aurr.7z
Use the list command with the 7z utility to view the file names and structure: 7z l aurr.7z Potential Origin of "aurr" Do you have on where you found this
Files related to Arch Linux packages often use "aur" in their names. aurr.7z