What is and How to Open CAJ File in Windows, MAC and online

File type format: China Academic Journals full-text database definition and linked programs information.

If you receive an attachment with the .caj extension and you don’t know how to edit, view and convert it keep reading. These files can only be viewed but some specific programs.

You have to download a program. A viewer that let you view these files.


How to open CAJ Files

  1. First, find your .CAJ file in your device, computer or mobile.
  2. Then, double click on it.
  3. In the open with drop down select an application viewer: CAJviewer.
  4. View it in the application
  5. Finally, save it and close.

The File extension caj is used by the following type(s) and related software:

China Academic Journals full-text database

Chinese website, translation doesn’t work.

Programs that open caj files:

  • CAJViewer¬†(Microsoft Windows)


You can Download for free CNKI Caj Viewer here http://cajviewer.cnki.net/download.html

The files created with this Viewer are something similar to a PDF file.

You can only use a cajviewer to edit caj files.



You can convert caj files to PDF or TXT. This way it is more portable.


About .caj extension

In filesextension.com you will find information about format caj and related programs to view, edit and convert it.

This data format was originally develope by the Chinese National Knowledge Infrastructure. It is also known as CNKI.

The official page of the CNKI is http://new.oversea.cnki.net/index/