Microsoft has decided on the branding for its all-new Office 2011 for Mac releases, offering the two packages in grey and orange boxes, Setteb.it reveals this morning. And here’s the pictures to prove it. The release of Microsoft Office for Mac 2011 will be simultaneous across 100 countries at the end of October. Two versions will be available, Office for Mac Home and Student 2011 and Office for Mac Home and Business 2011. It will cost between $99 and $119.