Organize your files and folders in dual panes and preview, with FileVoyager
FileVoyager is a free File Explorer and Organizer; it lets you perform all the usual tasks, such as copying, moving, etc., in a dual pane environment (having a pair of folders side by side) and with preview options.
A nice, but available also with other similar software, feature of FileVoyager is this preview (visualization) option that lets you have a look at common file types, even with syntax highlighting when you view text files containing programming code.
Beyond dual pane management, the program is able to create and unpack archives, even in not very common formats, such as tar and wim, and it can play audio and video.
If you like the idea of dual pane management and powerful preview options, FileVoyager is a free program you may like to try.