Hl_01_20.7z Guide

: The .7z extension uses the LZMA/LZMA2 algorithm, which generally provides better compression ratios than standard ZIP files.

“With the free download of 7-Zip you get a classic of the pack programs. It has a high compression rate in 7z, ZIP and GZIP format.” YouTube · ProgrammingKnowledge2 · 4 years ago HL_01_20.7z

: This specific file is likely a standalone archive. However, if you see files ending in .7z.001 , .7z.002 , etc., it means the archive has been split into parts ; you would need all parts in the same folder to extract them. How to Open and Review Contents HL_01_20.7z