OfficeSuite Pro is a great application that can prove very handy, especially if you need to edit on the go. You're able to view and edit PDF files, Word documents, Excel files as well as Power point documents. Also supporting .doc, .docx, .docm, .rtf, .txt, .log file formats . The applications is designed to be quick and easy to use you really can't go wrong for a freebie.
Thanks zshamas @ HUKD for the tip!