Convert XLS (Excel) to JSON

Convert XLS to JSON to import a legacy Excel workbook, compare an export, or process tabular data in code. Sheets are delivered as structured tables, so cell values are not merged into a single text string.

How the result is organised

The JSON always has four top-level fields. For a spreadsheet, sheet data is in tables; pages is present for the shared contract and can be an empty array.

{
  "source": { "filename": "price.xls", "format": "xls", "pages": 0, "size_bytes": 18432 },
  "converted_at": "2026-09-18 10:30:00",
  "pages": [],
  "tables": [{ "page": 1, "header": ["SKU", "Price"], "rows": [["A-15", "490"]] }]
}

• source describes the original workbook: its name, format, and size.
• converted_at shows when the JSON was prepared.
• pages remains an array even when a workbook has no text pages.
• tables contains a header and data rows for each sheet.
• Cell values are returned as strings, numbers and dates included: cast them in your own code.

JSON preserves cell values rather than sheet presentation: column widths, colours, charts, print areas, and formula styling do not carry over. Before importing, check that the first row of each sheet is suitable as a table header.

How to export a legacy workbook

1. Upload an XLS file.
2. Select JSON as the target format.
3. Download the result and use the tables array for an import or review.