Document layout evidence
Retain grouped headings, column order, selection marks, footnote anchors and continuation identity.
Extract a cell’s complete merged-header path
Leaf headings repeat and lose their parent column group.
Test reading order in a two-column handout
Geometric left-to-right row ordering interleaves two independent text columns.
Distinguish printed options from observed selection marks
A printed option label is incorrectly treated as a chosen response.
Attach each document footnote to its marked field
Footnotes are flattened into a global restriction on every row.
Record visible replacement text with its edit marks
A cancelled visible value is copied as current because both strings remain on the page.
Bind a continuation page to its supplied table header
Page-local extraction invents headings when a continuation omits them.