Cloud service Dropbox
has announced a new platform feature, dubbed Documents Preview. The option lets people get a glimpse at the contents of files without having to open them in their native apps. At present, only some filetypes are being supported, such as .doc, .docx, PowerPoint, and PDF; Excel is a notable omission. So far, only the web and Android
versions of Dropbox have been upgraded to include the new feature, and full web deployment may take several months.