Once opened in a safe environment (like a Sandbox), ensure there are no hidden .exe , .scr , or .vbs files.
Often, the archive contains an executable (.exe) or a script disguised as a photo or a video of a bike tour to trick users into running malicious code. Technical Profile Bike tour.7z
Use a tool like VirusTotal to upload the file and check it against 70+ antivirus engines. Once opened in a safe environment (like a