{
  "file_bytes": 1097,
  "read_only": true,
  "sheets": [
    {
      "name": "Budget",
      "state": "visible",
      "formulas": 2,
      "error_cells": 1,
      "rows_with_cells": 2
    }
  ],
  "warnings": [
    "Formula results are not recalculated; review in a trusted spreadsheet application"
  ],
  "formula_cells": 2,
  "error_cells": 1,
  "suspicious_formula_cells": [
    {
      "sheet": "Budget",
      "cell": "A2",
      "issue": "formula_contains_error_reference"
    }
  ],
  "example_note": "Synthetic 2-row XML fixture; diagnostic only, not a customer workbook or automatic repair."
}