# Microsoft Excel Microsoft Excel appears through the legacy `.xls` workbook extension on PDF page 7. ## Source - [[Scanned_20260730-1806#Page 7 — `Scanned_20260730-1806.pdf`, PDF page 7|Scanned_20260730-1806, PDF page 7]] Extension alone does not authenticate a workbook; preserve magic bytes, internal structure, hashes, macros, and originating application.