Hey okjoel, when it comes to our website, iWork files (pages, keynote, and numbers) might have a preview thumbnail, but will not preview in fullscreen. (Note: Only the first page of .numbers, .pages & .key/ .keynote files will preview.) This is because iWork files are generally not a single file, but usually a package of other files.
In any event, I appreciate the time you took to detail us your interest on this functionality. I’ve already made sure to pass your comments on to our team specialists, as your thoughts help us better understand your needs & I’ve added your voice to the feedback gathered internally.
Thanks for choosing Dropbox & I'm always here in case you’d like to continue this discussion in more depth. I hope you have a wonderful rest of your day ahead!
