Check out all of our APIs for developing with Excel Services on the web
Interactive View enables you to create an Excel experience for your visitors based on any HTML table.
REST API (SharePoint Only)
Excel Services offers a REST API that you can use to pull workbook data into your applications. By using the REST API, you can access workbook parts or elements directly through a URL. Currently, you use the REST API to work with SharePoint solutions.
SOAP API (SharePoint Only)
Excel Services also provides a SOAP-based Web Service. Currently, you use the Excel Services Web Service to work with SharePoint solutions.