You will need 7-Zip or a similar file archiver (like WinRAR or Keka) to extract the contents [1].
Before opening, scan the file with antivirus software, as files from unidentified sources ("UnknownArtist") can pose risks. UnknownArtist 180 7z
Once extracted, check the file properties or any enclosed README text files to identify the actual content creator [1]. You will need 7-Zip or a similar file
If you can share where you found this file or what type of files are inside, I can try to help identify the "UnknownArtist." scan the file with antivirus software