Its a complete pack of office related soft wares.
For sending and receiving mails Outlook express, for presentations powerpoint, for calculation and maintaining tables excel, for documentation word. It is full proof solution for managing the tasks.
The software is paid and easy to install. It installs all the programs for you or you can manually select list of programs that you need on the computer.
The software is heavy and takes lot of space on computer.
These documents can be read on the web using google docs too.