A free app for Android, by Green Rocket Apps.

All Document Reader and Viewer is a free, versatile app that can be used to read and view a variety of document types, including PDF, Word, Excel, PowerPoint, and Text.

With this app, you can view and read PDFs, as well as edit them, add text, and images, create PDFs from your own images, and more. You can also view and edit Word documents, Excel sheets, and PowerPoint presentations. The app is extremely easy to use, so even if you don’t have any experience with it, you’ll be able to get up and running with it in no time.