File Handler Add-Ins Now Generally Available in Office 365

Office Add-ins team

During Build and Ignite 2015, we announced the preview refresh of File Handler add-ins. This add-in type allows developers to create their own custom viewers and editors for non-Microsoft file types in SharePoint Online, OneDrive for Business, and Outlook Web App.
File Handler add-ins - owa

File Handler add-ins - Sharepoint
We are pleased to announce that this feature is now generally available 100% in SharePoint Online and OneDrive for Business, and is rolled out to 50% of all Exchange Online tenants. The feature is currently rolling out to additional Exchange tenants and should be available to everyone in the next few weeks.
This Ignite talk is a detailed tutorial on building your own file handlers, but to get started quickly you can:

  1. You can download the sample File Handler on Github to take a look at how these apps work. 
  2. Check out the documentation for file handler add-ins in MSDN to get a more detailed overview of this feature.
  3. Start experimenting with your own file handlers (and let us know what you think in the comments) J

Happy coding!

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