CSView is primarily intended for displaying HTML or Markdown files, which generally have the extensions:

When installing CSPro, the .cshtml format is associated with CSView, providing a convenient way to open HTML-style files directly in the tool.

If a Markdown file is opened by CSView, it is converted to HTML before displaying.

For a file that is not HTML or derivable, CSView displays it using the default behavior of the web browser. For many file types, such as image, video, or text files, this will properly display the file. When preparing CSView for production use, make sure to test all file types to ensure that the web browser can properly handle the types of files that you intend to display.