.CAJ File Extension

China National Knowledge Infrastructure
File Type:
Chinese Academic Journal File

Having trouble opening .caj extension? Don't panic! This page explains what caj files are as well as suggests programs you may use to open caj files. You can download these programs through this page.

What is a CAJ file?

Caj file extension has Chinese Academic Journal file type, developed by China National Knowledge Infrastructure, which is associated with the "page layout files" category.

These are journal files in the format designed to store Chinese academic articles. Each CAJ file includes text information from a published article and additional information about authors, annotations, citations, used sources, and so on. The .CAJ format is similar to the .PDF format and it is commonly used in China. Users can open a CAJ file using CAJViewer applications. You can also export CAJ files to other, more popular formats like .TXT or .PDF.

To learn how you can open the given file, read the information below.

caj file icon
China National Knowledge Infrastructure
File Type:
Chinese Academic Journal File
Page Layout Files

How to open CAJ file?

Double click the caj file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .caj extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the caj extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the caj file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open CAJ files

  • Windows Windows
    • CNKI CAJViewer CNKI CAJViewer
  • MacOS MacOS
    • CNKI CAJViewer CNKI CAJViewer
  • Web Web
    • CNKI CAJViewer CNKI CAJViewer
  • iOS iOS
    • CNKI CAJViewer HD 1 CNKI CAJViewer HD 1
  • Android Android
    • CNKI CAJViewer CNKI CAJViewer

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the caj file as well. Download Universal File Viewer for your OS.

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