It can compress tree files to less than 2% of their original size.
It features three zippers that meet at a single point, allowing the pack to be opened fully for "tear-away" access to the bottom.
It uses the .TRZ extension as an alternative to the standard Newick format, making large datasets easier to share.
It provides Gzip-like compression and decompression for .trees files.
Often confused with "Treszip," is a Python-based utility designed for the tskit ecosystem to compress tree sequences.
Dana Gleason Interview :: The invention of the 3Zip (Part 1)