A full version app for Android, by Joerg Jahnke.

Office Documents Viewer Pro is a powerful and intuitive document viewer for Android with support for many Office file formats (ODF). It supports reading documents from a number of different locations, including the internal storage, SD card, Dropbox, Box, and even email, as well as text files, spreadsheets, and presentations. It has a simple and intuitive user interface, making it easy to use and understand for people of all ages. It is intended for use in a personal or business environment, and can be downloaded and used on Android devices with an Internet connection.

The app supports a number of formats for reading documents:

The following formats are currently supported:

ODF (Open Document Format) – the most common and most supported Office document format, which is used by a number of different office productivity applications. OOXML (Microsoft Office) – an XML-based format developed by Microsoft, which is used in Microsoft Office, as well as in many other applications.