Updated: March 27, 2014
Current Version: 15.0.2720.2000

apkpro.net: http://dl.apkpro.net/55T
tusfiles: http://dl.apkpro.net/55U
hugefiles:  http://dl.apkpro.net/55V
zippy : http://dl.apkpro.net/55W
devhost: http://dl.apkpro.net/55X
sharebeast: http://dl.apkpro.net/55Y

==========OLD VERSION==========
Install APK
Sign in with your Microsoft account (An available Microsoft account is needed, if you don't have it, please visit https://signup.live.com)
Now Office Mobile is activated, no subscription needed

Version: 15.0.2413.2000 patched
tusfiles: http://dl.apkpro.net/2zQ
hugefiles: http://dl.apkpro.net/2zR
zippy : http://dl.apkpro.net/2zS
devhost: http://dl.apkpro.net/2zT
Sharebeast: http://dl.apkpro.net/2zU