Search for keywords in the search engine and find the official website of CAJ downloader.

After entering the website, click on the navigation bar, then confirm, and you can wait for the download to be completed.

After the download is completed, the installation is also very simple. There are a few points to note here.

Open the cdj file with caj reader. You can drag the CAJ file directly to the reader with the mouse and click the file in the upper left corner.