It typically results in files 30–70% smaller than ZIP.
Auditable, though lacks some modern security flags like ASLR. Requires 3rd party app Requires apps like 7-Zip, PeaZip , or Keka . dontpostme.7z
Be cautious if you downloaded this from a third-party site. Recent reports have identified fake 7-Zip installers that install malware and turn PCs into proxy nodes Malwarebytes . It typically results in files 30–70% smaller than ZIP