I am using Windows 7. When I open files and folders by clicking on the PI 'desktop' I have to choose the option of which type of file extension I want to see. It invariably defaults to XISF image files, when I want to see fits files which are generated by my imaging software. Is there a way to have the file-type option show 'all files' by default rather than a specific file-type? Incidentally, I prefer Windows explorer to the native PI file explorer.