# Open Content

Open content is implemented.

The allows a complex type to specify open content with mode "interleave" or "suffix", allowing arbitrary elements (satisfying a wildcard) to be added either anywhere in the content sequence, or at the end.

At the level of a schema document, the `defaultOpenContent` defines the default open content mode for all types defined in the schema document (or, for all types except those with an empty content model).

Similarly, the `defaultAttributes` attribute of the `xs:schema` element defines a default attribute wildcard to be permitted for all complex types defined in the schema document.

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