The new Files app improves on the old iCloud Drive app in many ways. You can now access files in third-party systems like Dropbox and Google Drive. You can preview PDF, text, image, sound and video files. You can move, rename, duplicate and delete files. You can create new folders and organize your iCloud Drive files. Like Preview on the Mac, you can mark up PDF and image files. You can also look inside ZIP archives and even extract files. You can share files with iCloud Drive to collaborate or simply let others see your files.