with reputable antivirus software (such as Malwarebytes or Windows Defender) before attempting to extract its contents.
this file if it came from an untrusted source, such as an unknown email attachment, a suspicious website, or a peer-to-peer file-sharing network.
If you are looking for a specific game, mod, or file, please ensure you are downloading from official and trusted sources.
If you can tell me or what you expected it to contain (e.g., a game mod, a picture set), I can provide more specific safety advice.