

A refreshed sidebar lets you hop to a certain page or slide when previewing those files, which is super useful if you're looking for something specific and know the page it's on.

PDF and PowerPoint previews are getting a boost, too.

You can explore a ZIP or RAR file's structure, and preview things like images without having to waste time and bandwidth on downloads if the contents aren't useful. If you've been hoping for a similar feature elsewhere, you're in luck: Dropbox has updated how it handles previews for a bunch of file types. If you've ever received a ZIP or RAR file in Gmail, you'll have noticed that you can peek to see what's inside without having to download the file.
