Kingsoft Office (Free)

All is FREE! Allow you View & Edit Office files Anywhere and Anytime.

Kingsoft Office is the only mobile Office with full-features FREE. Support for running on Android 2.1 and above system. User-friendly & nice UI interface! Users from over 200 countries and regions around the world are using it. The Average Rating of Kingsoft Office is up to 4.6 stars! Whether in a small cell phone screen or on a large screen on the Tablet, Kingsoft Office has a superior performance!

FREE to view DOC, DOCX, XLS, XLSX, PPT, PPTX files, create DOC, DOCX, XLS, XLSX.
Kingsoft Office is known as the most user-friendly mobile Office: whether in a small cell phone screen or on a large screen on the Tablet, Kingsoft Office has a superior performance!
And it is also the only mobile Office with full-features FREE: all features listed below are free to use!

Core Features:

View & Edit DOC/DOCX/TXT/XLS/XLSX/PPT/PPTX files;
View PDF files;
User-friendly & nice UI;
Built-in file manager that can automatically organize your office document;
Tight integration with the mail application: you can open the attachment, and can directly send after modification;
Support the cloud storage services with WebDAV protocol;