CAJ file does not exist or cannot be accessed normally

Description of the problem When
opening a file ending with .caj, there is a problem that the file does not exist or cannot be accessed normally, as shown in the following figure:
Solve the problem
1. Uninstall and reinstall the CAJ software, but failed;
2. Modify the registry according to the network method, but failed;
3. The problem in the modification time and language was unsuccessful;
4. Re-download the paper from Zhinet and observe whether it can be opened normally, and found that it can be opened, and concluded that there is no problem with the software, and later found that it was because of the folder name where the file was stored There are unrecognized characters (❤ character), solve the problem.