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- The ODM file must be a well-formed XML file. See the XML standard for details.
- The ODM file must conform to the XML Namespace standard. See the XML Namespace standard for details.
- The ODM file must contain only elements and attributes defined in the ODM standard schema or in a valid vendor extension schema, and must satisfy the rules about element nesting and the formats of attribute values and element bodies.
- The ODM file must contain a prolog and a single (top-level) ODM element.
- The ODM file must use the ODM 1.3 namespace, which is "http://www.cdisc.org/ns/odm/v1.3"
- The ODMVersion attribute on the top level ODM element must be set to "1.3.2"
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