I understand what zip files are, and I understand Office 2010 files are zipped files without the zip extention, but why does IE8 change downloading a .ppam file to a .zip file??? FireFox downloads it correctly as a .ppam. Are users expected to know to change the extension back to ppam? Is this the default? Is there a way to turn this off? Will IE 9 have this same undesirable behavior?
Edit01: I read that IE outsmarts itself in guessing the file type and then makes it's own decision to change the extension to something maybe incorrect. The server administrator has to add extra MIME information on the server to correct IE's faulty logic. Is that about right?