Reference (SharePoint tools extensibility)
Applies to: 
Visual Studio 
Visual Studio for Mac
Note
This article applies to Visual Studio 2017. If you're looking for the latest Visual Studio documentation, see Visual Studio documentation. We recommend upgrading to the latest version of Visual Studio. Download it here
This section contains reference documentation for extending the SharePoint tools in Visual Studio.
In this section
SharePoint project item schema reference
Contains reference documentation for the .spdata file schema.
API reference (SharePoint tools extensibility)
Contains API reference documentation for extending the SharePoint tools in Visual Studio.