Document Viewer is a free and very simple application that allows you to view all sorts of files, such as.xls,.doc,.pdf, and more.

It is designed to be used with your phone's built-in microphone, so that you can simply speak to the app to view your files.

This app is very simple and easy to use, so even if you have no prior knowledge of programming or computers, you can still use it.

If you are a regular user of this app, then you will probably find that it is quite simple and easy to use, with a simple user interface and a few different options that allow you to customize the behavior of this app to fit your own needs.