Kavya,
There is a document viewer widget in the appstore that enables you to display documents on pages in your Mendix app. As long as the file is stored as a System.FileDocument (or as a specialization of System.FileDocument), it can be displayed. The widget can be found here: https://appstore.home.mendix.com/link/app/12/ This how to may also be helpful: https://docs.mendix.com/howto/data-models/working-with-images-and-files
Hope that helps,
Mike