This document specifies the Excel Calculation Web Service Protocol. This protocol enables communication between a protocol client that displays workbooks for viewing and interacting 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 [RFC2119]. Sections 1.5 and 1.9 are also normative but do not contain those terms. All other sections and examples in this specification are informative.