The software and the format itself are free to use and distribute under the GNU LGPL. How to Open shar2.7z Zipping and Splitting Large Files - Zanda Knowledge Base
Large files can be split into smaller parts (e.g., shar2.7z.001, shar2.7z.002) for easier uploading to platforms with file size limits. shar2.7z
It can shrink large folders by 30–70% more than the standard ZIP format. The software and the format itself are free
It supports AES-256 encryption , making it a secure choice for protecting sensitive data with a password. shar2.7z