title: OPEN XML add custom not visible data to paragraph/table
body: <p>Is there a way to store additional data for a paragraph, that would be persisted after user opens and saves a document in MS Word.</p>
  
  <p>Ive been using CusotmXML for this, but it turns out that this is no logner possible due to the fact that MS-Word strips all CusotmXML elements from the document structure.</p>
  
  <p>Every single paragraph or a table has an ID that I would like to "pair back" to my data-source. 
  So later when I read the docx again I can identify origins of every unchanged paragraph/table in the document. </p>