1.3 Structure Overview (Synopsis)
The structures specified in this format provide an extended XML vocabulary for a word processing document. The extended elements and attributes allow the format to indicate further information about a document, or to indicate content and formatting of parts of the document beyond the elements and attributes specified in the Office Open XML File Formats specification. Because these elements and attributes are meant as extensions, their intent and usage varies.
The new elements and attributes specified in this format come in six groups. The first group extends the vocabulary for describing formatting properties of text by adding elements for specifying text effects such as shadow, glow, reflection, and also by adding elements for specifying typographical properties such as ligatures or how numeral spacing is displayed. See section 2.2.1 for more information.
The second group extends the settings that are applied to a word processing document by adding two settings to govern how images are saved, and two settings used when the document is authored by multiple authors. See section 2.2.2 for more information.
The third group of extensions provides for specifying four more kinds of structured document tags and altering the appearance of structured document tags. See section 2.2.3 for more information.
The fourth group of extensions specifies three additional attributes to appear on paragraph, section, or table rows. These attributes provide for uniquely identifying paragraphs or table rows within a document part, or provide information about presence of spelling mistakes within a paragraph, or provide formatting information for the layout of footnotes in a section. See section 2.2.4 for more information.
The fifth group specifies eight new elements that can be used when conflicting edits are present in a document that is authored by multiple authors. See section 2.2.5 for more information.
The sixth group specifies a new attribute to appear on picture and embedded objects to provide an identifier for those objects. See section 2.2.6 for more information.
Section 2.2.7 specifies a new value that extends the types of calendars that can be used in a word processing document.
Section 2.3 specifies an extension of the set of values to be used when specifying compatibility settings of the document. Section 2.4 specifies an extension of the set of values to be used when specifying numbering formats.
The extensions specified in this format are integrated into ISO/IEC-29500 by means of the Markup Compatibility and Extensibility features as specified by ISO/IEC-29500. Specifically, the Ignorable attribute and the AlternateContent element are used to maintain compatibility with ISO/IEC-29500 implementations when integrating the extensions from this format. Using these extensions as specified in this document will result in a word processing document conformant to ISO/IEC-29500.