Microsoft published public download links for Office 2016 Preview for those who want to experience and share the future of the next Office version. The Office 2016 Preview was previous only available to Office 365 subscribers and developers with MSDN accounts.
The new preview brings back the ability to add One drive attachments in emails when using Outlook and a new User Interface, real-time collaboration, and updated charts and graphs and more analyzing tools in Excel. Just in case you are not faint hearted and want to try out the new Office 2016 Preview, you can download it from here. [Office.com]