Because .7z is a compressed archive format, you can "look into" its features and contents using standard archive tools. How to Explore the Contents
If you are asking about the "Excellent Edition" in terms of how it was compressed, .7z (created by 7-Zip ) offers: Excellent.Edition.7z
: Uses the LZMA/LZMA2 algorithm to make files significantly smaller than standard .zip files. Because