Use a reliable antivirus with real-time protection (Bitdefender, Kaspersky, Malwarebytes). Most modern browsers will warn you if a download is dangerous.
Cybersecurity firms have flagged the keyword "Bigfile.000.tiger Download" as a high-risk search term. Here is why: Bigfile.000.tiger Download
Yes, try renaming it to Bigfile.000.7z or open directly in 7-Zip’s “Open archive” mode. However, if it has a custom "Tiger" header, you may need a hex editor to remove the first 512 bytes. Bigfile.000.tiger Download