Files with ncx file extension are related to the Navigation Control file for XML (EPUB).

There is one other file type using
the NCX file extension!

ncx icon.ncx - Navicat database exported connection settings

Detailed description

Software that open ncx file

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NCX file extension - Navigation Control for XML

What is ncx file? How to open ncx files?

File type specification:

Source code and script file type icon Source code and script file type

The ncx file extension is used for Navigation Control file for XML, which contains the hierarchical table of contents for the EPUB file.

The specification for ncx files was developed for Digital Talking Book (DTB), is maintained by the DAISY Consortium, and is not a part of the EPUB specification.

Mime types:

The default software associated to open ncx file:

Calibre icon

Calibre  Microsoft Windows software

Company or developer:
Kovid Goyal

A very popular, open source digital publication library management program for Microsoft Windows developed by e-book users for e-book users. It supports many common, and few uncommon e-book formats, like azw, cbc, cbr, cbz, epub, htmlz, lit etc.

Help how to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .ncx file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

Related links:

NCX entry at Wikipedia

List of recommended software applications associated to the .ncx file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ncx file, edit ncx file, convert ncx file, view ncx file, play ncx file etc. (if exist software for corresponding action in's database).

Unspecified and all other actions for computer programs working with ncx file - Navigation Control for XML

Click on the software link(s) for more information. Suggested software applications use ncx file type for internal purposes and/or also by different way than common edit or open ncx file actions.

Microsoft Windows:

Apple macOS / Mac OS X:


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