OfficeDeveloperPlatformTeam 

The Open XML SDK provides tools for working with Office Word, Excel, and PowerPoint documents. It supports scenarios such as: - High-performance generation of word-processing documents, spreadsheets, and presentations. - Populating content in Word files from an XML data source. - Splitting up... More information

This package contains SharePoint and Project Client Object Model libraries

Core CSOM extension methods for SharePoint Online add-in model development. This will increase productivity of the developers by abstracting complex operations.

A port of Microsoft.IdentityModel.Extensions.dll packaged as a NuGet package by the SharePoint PnP team.

The Office JavaScript API includes objects, methods, properties, events, and enumerations that can be used from apps for Office to interact with Microsoft Office 2013 documents or mail items content.

This package contains SharePoint Client Object Model libraries for SharePoint 2013 - April 2015 CU version

Core CSOM extension methods for SharePoint 2013 add-in model development. This will increase productivity of the developers by abstracting complex operations.

Core CSOM extension methods for SharePoint 2016 add-in model development. This will increase productivity of the developers by abstracting complex operations.

This package contains SharePoint Client Object Model libraries for SharePoint 2016 - RTM version

This package contains SharePoint Client Object Model libraries for SharePoint 2019 - RTM - October 2018

Core CSOM (extension) methods to support modernizing your SharePoint sites. Has support for transform classic wiki pages and web part pages into modern client side pages