CJD file format description

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

1 filename extension(s) found in our database.

.cjd - Casio EX-word Dictionary Data

The CJD data files are related to Casio Ex-word. The CJD file is a Casio EX-word Dictionary Data. Casio EX-word is a Japanese electronic dictionary device.

Casio Ex-word
Data files
- / -
Casio EX-word Dictionary Data related extensions:
FMAT Listmode Data
SoundEdit Data
JAWS Preload Data
MySQL Native Driver for PHP Data
Timeliner 5 Data

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

Can't open a .cjd 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 .cjd file extension is often given incorrectly!

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

cd, cdj, chd, cid, cjs, ckd, cmd, cnd, cud, cyd, djd, jcd, jd, sjd

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

CommonJS Script
ChmUpDate Data
Chordastic Chord
Kubotek KeyCreator Design Container
Scrapbook Factory Journal Data

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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DataTypes.net >> CJD file