Win7 How to open a CAJ file on a system:
1, directly open the PDF reader, click the file → open, find cajviewer, find the target CAJ file folder, the lower right corner drop-down menu select "All Files";
2, this time you can see the CAJ file to view, select, click to open to view the CAJ file;
3, open the target CAJ file folder, click the Caj file you want to view;
4, the suffix of the file. CAJ "instead". PDF ";
5, click again, at this time pop-up dialog box, click OK;
6, CAJ file into PDF file;
7, with the PDF file reader normally open.