Show navigationGuidance on XML IssuesComments Direction of writing Do not use CDATA to concatenate data Importing RIN Files into RIN Files Java library's date bug for 2020 Locations of XSDs Namespace and file locations for the XSD for allowed value sets Order of XML attributes Preambles for XML-based DDEX messages Referencing composites using ID and IDREF Semantics of repeating XML tags Special XML characters (and how to avoid &)