This document specifies the Excel Calculation Web Service Version 2 Protocol. This protocol enables communication between a protocol client that displays workbooks for viewing and editing with a protocol server that loads and calculates workbooks.
Sections 1.8, 2, and 3 of this specification are normative and can contain the terms MAY, SHOULD, MUST, MUST NOT, and SHOULD NOT as defined in RFC 2119. Sections 1.5 and 1.9 are also normative but cannot contain those terms. All other sections and examples in this specification are informative.