A free app for Android, by Infraware Inc..

The Polaris Viewer – PDF Docs Sheets Slide Reader app is a versatile app for viewing, editing, and converting your files. It allows you to view PDF documents, word documents, Excel spreadsheets, PowerPoint slides, JPEG images, and more.

In addition, it supports a wide variety of document formats, including Microsoft Office, TXT, Zip file, and Adobe PDF.

This app is designed to work on Android phones and tablets, and has an excellent UI. You can easily access your documents and manage them.

It has the following functions:

View – The app can view a wide variety of document formats, including Microsoft Office, TXT, Zip file, and Adobe PDF.