: It supports AES-256 encryption for both data and file headers (meaning even the filenames are hidden), making it a preferred choice for secure storage.
: The 7z format typically provides 30–70% better compression than the standard ZIP format, especially when using the LZMA and LZMA2 methods. 3584 TA 7z
: While 7z is more efficient for personal storage, Microsoft Community Hub experts suggest using ZIP for sending files to others to ensure they can open them without needing extra software. : It supports AES-256 encryption for both data
: A "light" version that only handles 7z archives and lacks encryption support. Does 7z compress better than zip? - Microsoft Community Hub 3584 TA 7z