EBookDroid
EBookDroid is a highly customizable document viewer for Android. EBookDroid supports the following ebook and document formats: DjVU, PDF, XPS (OpenXPS), FictionBook (fb2 and fb2.zip), Comics Book formats (cbr and cbz), plus – starting with version 2 – EPUB, RTF, MOBI and AWZ3.
A great app to read multiple kinds of files on your smartphone. As you can see from my answers, I am big on content.Kit#5 Pramit Singh