Open DNL File

The DNL file extension is an e-book storage file used by the DNL Reader program. The DNL Reader is an application developed by DesktopAuthor available for Windows, Mac and Android, which is part of the Education and science category of the Literature and references subcategory within the reading utilities of books. The file contains the text and images used in the ebook, along with navigation data. DNL files are of binary type and the DNL Reader software is required, both for their creation and for their reading.

As you might expect, DNL files are protected by DRM copyrights which limit the way files are shared between users.