Filezo comes with an inbuilt file previewer that allows you to view the contents of various file types without opening them in their respective applications.

Play audio/video, preview images, markdown, code, text files, PDFs, Microsoft Office documents, spread sheets and many other file types directly within Filezo.

You can add support for more file types by installing Microsoft PowerToys File Explorer add-ons or other third-party preview handlers.

Or you can completely replace the inbuilt file previewer with QuickLook, a free and open-source file previewer for Windows that supports a wide range of file types.