If you’re wondering why someone would use 7z instead of a regular ZIP, it comes down to three main benefits:

It supports AES-256 encryption , making it a favorite for securely sending sensitive documents.

Have you ever looked at your desktop mid-week and found a mysterious file named ? While it might sound like the start of a digital mystery, the ".7z" extension is actually one of the most powerful tools in your productivity arsenal.

A file ending in is a compressed archive created using 7-Zip , a free, open-source file archiver. Much like a standard ZIP file, it acts as a "container" that bundles multiple files and folders into one smaller package.

Wednesday.7z: Why Your Mid-Week Archives Are Using This Format