1.4 Relationship to Protocols and Other Structures

This file format is a specified set of extensions to Office Open XML SpreadsheetML, specified in [ISO/IEC29500-1:2016]. This specification is dependent on the structures and concepts defined in the following references:

• [ISO/IEC29500-1:2016] for baseline SpreadsheetML persistence format.

• [ISO/IEC29500-2:2012] for open packaging conventions.

• [ISO/IEC29500-3:2015] for markup compatibility and extensibility.

• [ISO/IEC29500-4:2016] for backward compatibility considerations.

• [MS-OFFCRYPTO] for the persistence format for document signing, information rights management, document encryption, and obfuscation.

• [MS-ODRAWXML] for the persistence format for shapes.