Text, PDF, Images are some of them that support this The preview pane in File Explorer shows you the contents of a file, such as image or text files, without having to open it with an app. js files with notepad - they do open, but the preview is also broken, which leads me to believe the Windows TXT Previewer might be broken in the system Windows File Explorer offers a preview pane, where, when a file is selected, a preview of the file content is displayed for some of the files. My File Explorer will not the preview any. Home What is the Preview pane in Windows Explorer