Good number of my developer customers/ISVs asking about “Microsoft Office Insider”, “what is it” and “where to getting started” - so i am sharing the related info.
As you aware that Microsoft Office is available around the world, and we’re continuously hard at work on exclusive monthly upgrades and new features for Office 365 subscribers. By becoming an Office Insider, you can get early access to the latest Office innovations. Your feedback goes directly to Microsoft product teams and will help make Office even better for users worldwide.
Here is a quick video about it, so that you can learn more.
Office Insider is a preview program for consumer Office 365 subscribers, including Office 365 Home, Personal, and University. Are you an Office 365 Business, Enterprise, or Education subscriber who would like to get early access to Office innovations? Then get the First Release build for Office 365 ProPlus. You and your users can be among the first to use the latest upgrades and new features and provide early feedback to help make Office even better on Windows desktops.
It’s available for the following,
(1) Windows Desktop (2) Mac (3) Windows Mobile (4) Android (5) iOS
To get more info about the above, please refer https://products.office.com/en-us/office-insider ; also it contains a detailed FAQ as well.
Step by step guide is available here. Please make use of it.
Hope this helps.