Three years later, I'm reviving this thread because some MS-infected folks are sending me files in "pub" format. It seems to be binary, I assume it decrypts to something html-like, I would hope that there's some way to read it in linux (I suppose MS might
provide a viewer that might
work with wine, but I'm hoping for something a bit more direct.) Any suggestions?
update 20 minutes later
(which I see has been mentioned on this site in other contexts) does a reasonable job of converting from binary "pub" format to html, also offers several other formats.