how open djvu file in window?
['Click the “Open” button to browse for the DjVu file to be opened on your PC in Windows Explorer. ... ', 'Your DjVu file is opened in DjVuLibre DjView.', 'To open a DjVu file in WinDjView, drag and drop the file into the window of the program or click the “Open” button to browse for a file using Windows Explorer.']