.NCX File Extension

There is only one file type that uses the .NCX extension:

EPUB Navigation Control XML File

EPUB Navigation Control XML File
  • Developer IDPF
  • Popularity
    3.6 (10 votes)
  • Category eBook Files
  • Format XML

Table of contents file created according to the XML-based Open Packaging Format (OPF) standard, which is part of the EPUB eBook specification; stores the document title and author, as well as the navigation points for the eBook; used as part of an overall .EPUB archive.

According to the Open Packaging Format 2.0 specification, NCX files should be created with a corresponding .OPF file, which contains the linear reading order and other eBook metadata.

NOTE: Since NCX files are saved in an XML format, they can be viewed and edited with a text editor.

Software's name License Platforms
Adobe Digital Editions Adobe Digital Editions Freeware AndroidiOSMacWindows
Adobe InDesign Adobe InDesign Commercial MacWindows
Calibre Calibre Open Source LinuxMacWindows
Geometer Plus FBReader Geometer Plus FBReader Freeware AndroidiOSLinuxMacWindows
KDE Okular KDE Okular Open Source LinuxMacWindows

Updated: September 8, 2010

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