>> NCX file

NCX file format description

Many people share .ncx files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .ncx file can be edited, converted or printed with. On this page, we try to provide assistance for handling .ncx files.

1 filename extension(s) found in our database.

.ncx - EPUB Navigation Control XML

The NCX ebook files are related to Calibre. NCX file is an EPUB Navigation Control XML. The NCX file (Navigation Control file for XML) contains the hierarchical table of contents for the EPUB file.

Ebook files
- / -
EPUB Navigation Control XML related extensions:
Calibre Device Information Data
Comic Book Collection
Zipped HTML eBook
Sony BBeB E-Book
Sony BBeB E-Book Source
Open Electronic Package Ebook

Naturally, other applications may also use the .ncx file extension. Even harmful programs can create .ncx files. Be especially cautious with .ncx files coming from an unknown source!

Can't open a .ncx file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .ncx file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bcx, cnx, cx, gcx, hcx, jcx, mcx, nc, nca, ncc, ncd, ncs, ncz, ndx, nfx

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

WinDev HyperFileSQL Index
MICRO CADAM-X/6000 Model Data
Lotus Notes Content Source
nvStructural NVX Plug-in
NetObjects Fusion Components
Beam-Report Standard Definition Data

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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