What File Extensions Will the Nook Ebook Reader Understand & Read?

By Aubrey Kerr

The Barnes & Noble Nook Color is a color touchscreen ebook reader that supports several file extensions. The older, non-color Nook has many of the same features as the Nook Color, including the ability to listen to music files and upload graphics files to personalize your screensaver. Use either Nook to read ebooks and magazines, view photos, connect to Wi-Fi and browse books in Barnes & Noble stores.

Standard Files

Like most ebook readers, the Nook supports any PDF file. The Nook can also read all EPUB files, regardless of whether they were created with Digital Rights Management (DRM) restrictions or not. The Nook Color can hold up to 6,000 ebooks and has a microSD memory slot for holding more ebooks and other files.


Nook Color also supports commonly used word processing and office documents like DOC, TXT, PPT and DOCX. Other document file types like XLS, PPS, DOCM, XLSM, PPTM, PPSX, PPSM, XLX and PPTX are also supported. You can load word processing documents or PowerPoint presentations on your Nook and transfer the files from one computer to another if needed.

Other File Types

The Nook supports more than just text files. JPG, GIF, PNG and BMP graphic files are supported, as are MP3 and AAC audio files and MP4 video files. The Nook has a built-in speaker and a headphone jack for listening to audio or video files and the color display can be customized with your photos. Store extra audio and video files on removable microSD memory cards.

Unsupported Extensions

As you may have suspected, the Nook won't be able to read Amazon's native ebook file AMZ or Sony's ebook file extensions LRZ or LRX. The Nook is also unable to read the LIT ebook format. You won't be able to download ebooks from Amazon on your Nook, but you will be able to download EPUB files from the Barnes and Noble website, or from any other online bookseller that offers EPUB or PDF files.