: Utilizing the LZMA and LZMA2 algorithms, 7z can often reduce file sizes by 30–70% more than the standard ZIP format.
: It supports AES-256 bit encryption , which can secure both the file contents and the filenames (metadata) within the archive.
: 7z allows large data sets to be split into several smaller volumes (e.g., .001 , .002 ), which is useful for storage on limited media or for easier email transmission. How to Access "tesfile.7z"