Store your files in a password protected online SkyDrive folder to access, edit, or share your work from virtually anywhere with the free Office Web Apps. And since Office for Mac is compatible with Office for Windows, you can work on documents with virtually anyone on a Mac or PC. Use familiar applications like Word, Excel, and PowerPoint to help you take your ideas further. And Office for Mac 2011 is here to help you do more with your Mac your way. Office for Mac 2011 - With over 1 billion PCs and Macs running Office, Microsoft Office is the most-trusted and most-used productivity suite ever.