Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I've noticed that when browsing an archive containing multiple files with 7-zip 9.20 Windows GUI, extracting one file for previewing takes significantly longer with .7z than .rar archives. With .7zips it also cycles through the filenames in the archive. To me it looks like decompressing the entire archive and keeping just one file.

Is there a setting in 7-zip (current or beta/alpha versions) that allows RAR-like behavior?

share|improve this question
up vote 2 down vote accepted

You need to change the Solid Block size option to Non-solid. RAR supports solid compression too, but perhaps it's not enabled by default.

share|improve this answer
Wow, such an useful feature and not enabled by default on 7-zip? It doesn't even increase the file size noticeably... – siikamiika Oct 27 '13 at 22:56

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.