Excel Services Class Library and Web Service Reference

SharePoint 2010

Last modified: September 07, 2011

Applies to: Office 365 | SharePoint Online | SharePoint Server 2010

An important aspect of Excel Services is that solution developers can use its power programmatically from their applications. These solutions can be line-of-business (LOB) products or custom enterprise solutions that an organization develops internally.

This section contains the Excel Services class library and Web service reference.

Table 1. Excel Services namespace descriptions




The Excel Web Services API.


Excel Services user-defined function (UDF) attributes.


The Excel Web Access Web Part object model.

Ewa Namespace

The ECMAScript (JavaScript, JScript) object model in Excel Services.

Excel Services REST API

The Representational State Transfer (REST) API in Excel Services.