This file is the of a "split archive". When a folder is too big to send in one go—perhaps it contains high-res video or a massive database—the creator uses tools like 7-Zip or Unzip One to break it into manageable chunks. Why Split Files?

Always ensure you trust the source of a .7z file. Because these archives can be encrypted and contain multiple file types, they are occasionally used to hide malicious software. Always run a quick scan with your preferred security tool before extracting.

Most email providers cap attachments at 25MB. Splitting allows you to send a 100MB file across four emails.