C:\Program Files (x86)\Adobe\Photoshop Elements 7.0\PhotoshopelementsEditor.exe
Executable Command
CryptExtOpenCER %1
Windows Object
Photoshop.CHAFile
There are many ways to open file with specific file extension. There could be also multiple applications which you can use to open CHA file. Learn more how to open APK file. Also you can try using hex or text editors like HexView or Notepad++ to open CHA files.