Some of the main features the new Office 2013 delivers on Windows 8 include:

Touch everywhere. Office responds to touch as naturally as it does to keyboard and mouse. Swipe your finger across the screen or pinch and zoom to read your documents and presentations. Author new content and access features with the touch of a finger.
Inking. Use a stylus to create content, take notes and access features. Handwrite email responses and convert them automatically to text. Use your stylus as a laser pointer when presenting. Color your content and erase your mistakes with ease.
New Windows 8 applications. OneNote and Lync represent the first new Windows 8 style applications for Office. These applications are designed to deliver touch-first experiences on a tablet. A new radial menu in OneNote makes it easy to access features with your finger.
Included in Windows RT. Office Home and Student 2013 RT, which contains new versions of Word, Excel, PowerPoint and OneNote applications, will be included on ARM-based Windows 8 devices, including Microsoft Surface.

Mount/burn the image.
Installation note is added so use it and install and activate your office.