new features, hope it works on the openFiledialog windows

hope it can work on [openFiledialog](https://th.bing.com/th/id/R.651f9ffef6cd457a341b38c3f5559951?rik=qcS7ld9unk6puA&riu=http%3a%2f%2fwww.wpf-tutorial.com%2fImages%2fArticleImages%2f1%2fchapters%2fdialogs%2fopenfiledialog_filter.png&ehk=5bfmdbi6drJVCbTFgwqh6psaShv2IUE8XiajnmY8Mc0%3d&risl=&pid=ImgRaw&r=0&sres=1&sresct=1) windows.
 So it is convenient to choose the file.