link:documentation 

Concrete element to use for documentation of 
extended links and linkbases.

Element Information

Model

Attributes

Used By

Elements link:calculationLink, link:definitionLink, link:footnoteLink, link:labelLink, link:linkbase, link:presentationLink, link:referenceLink

Source 

<element name="documentation" type="xl:documentationType" substitutionGroup="xl:documentation">
  <annotation>
    <documentation>Concrete element to use for documentation of extended links and linkbases.</documentation>
  </annotation>
</element>

Sample