: Explain that .7z files are created using 7-Zip, known for high compression ratios. This suggests the contents are either massive or highly technical.

: Always run the file through a service like VirusTotal to ensure the "mystery" isn't a Trojan horse.

If you've found a file like this, don't just extract it. Follow these steps:

In an era of streaming and cloud storage, why do we still pass around .7z files?