L.1.16.2 Compatibility Settings
A compatibility setting is an optional setting used to mimic behavior of documents created in earlier word-processing applications. It is recommended that new WordprocessingML documents contain no compatibility settings. If compatibility settings are needed, they are stored in the Document Settings part (L.1.16.1).
Consider a document in which the compatibility setting ww11IndentRules is applied. As a compatibility setting, this element specifies an indentation behavior to be applied throughout the given document to preserve visual fidelity with an earlier word processing application. Specifically, if the indentation applied to numbering when positioned next to a wrapped object must not be suppressed, this requirement would be specified by adding the following WordprocessingML to the settings part
<w:compat>
<w:ww11IndentRules />
</w:compat>
Specifying that indentation applied to numbering when positioned next to a wrapped object must not be suppressed, as illustrated below:
If this element is omitted, then indentation applied to numbering when positioned next to a wrapped object must be suppressed, as illustrated below: