Office 2010 build 4302

Microsoft Office 2010 build 4302 is a leaked beta 1 build of Microsoft Office 2010.

New features and changes

 * Aero transparency extends down to the Ribbon tabs.
 * The Office button has been replaced with the File tab.
 * Ribbon tabs are now displayed in the backstage view.
 * Dedicated buttons for the info and application pages have been added to the backstage view.
 * InfoPath Editor has been renamed to InfoPath Filler.