Six seller files float around one format engine — a rent roll workbook, a T-12 PDF, a scanned offering memo, a broker CSV export, a seller model and an Argus cashflow. Each states the same net operating income of $842,110 in a different dialect: 842,110, $842K, 842110.00, 842.1 in thousands. Negatives appear in parentheses, angle brackets and signed form, and one field is absent rather than zero. Six long dashed lines sweep from the cards into the engine, and a brass spark rides each one. Under the engine: format engine, one schema, $842,110 NOI six ways.