A page layout has to be interpreted as a grid
A PDF may position text visually without defining spreadsheet rows and columns. Extraction software must infer which labels belong together and where cell boundaries should fall. Multi-line descriptions, footnotes, and nested headers can make a table look clear to a person but ambiguous to automatic reconstruction.
Treat the workbook as a starting point for review, not as a verified database. Compare totals, headings, and several records with the original page. If the table spans pages, confirm that repeated headers were handled consistently and that continuation rows were not detached from their labels.