Microsoft Office 2013 Preview

All Windows 8 RTM users can now download the Microsoft Office 2013 Preview copy directly from High speed Microsoft servers

Source-http://www.microsoft.com/office/preview/en

32 bit:-

Click Here

64 bit:-

Click Here

Activation key:- (Use any one of the following)
TD8JN-CM7XB-4DX86-BBKCF-8BYP8
NX9CW-KJWY9-X94BW-M77QH-94MP8
NTQV7-XR4TC-69RMT-HXFM7-94MP8
Y89N6-KWWJX-YHFVP-DWMGK-XKR9J
MT7NR-6GWBK-QGHBV-2YBFG-72V28

Note:- This Office version(Office 2013) is not full and final version, but is provided by Microsoft for testing purposes only