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 know that Microsoft Office files are basically just ZIP archives with a different file extension that contain XML files. However, when you select the "Encrypt with a password" option how are they stored, because when I try renaming one to a zip it isn't recognised as one and won't extract.

share|improve this question

I guess it uses some form of Data Spaces Structure for Rights-Managed Content.

Hope I helped.

share|improve this answer
Wow, I forgot about this question. Thanks for the link, I'll look into it a bit more when I get the chance. – Andy Sep 1 '13 at 17:43
Good luck. Hope to hear from you soon. – Jacob Rabinsun Sep 2 '13 at 2:26

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.