JSON to XLS Converter

Export JSON values as XLS for compatible data exchange.

Converted in your browser. Your file never leaves your device.

Accepts .json · Up to 10 MB per file · Several files at once (ZIP)

Drop your JSON files here

or drag and drop · 10 MB per file

How to convert JSON to XLS

  1. Choose JSON files up to 10 MB.
  2. Use UTF-8 JSON containing a nonempty array of objects.
  3. Review the report and download the XLS file.

Where this file comes from

APIs and application exports produce JSON records as arrays of objects.

What changes in the conversion

XLS is useful for legacy Excel readers. This tool creates an Excel 97-2003 values-only workbook with up to 256 columns per sheet.

The union of record keys becomes the first row of one worksheet. Numbers and booleans keep their types; missing and null values become blank cells. Nested objects and arrays become JSON text. String values are stored as text, without executing formulas. Numbers use JavaScript precision; store very large integers as strings.

Size limits and browser notes

Runs in a browser worker. Limits: 10 MB input, 100 MB expanded container, 50 worksheets, 50,000 rows, 256 columns, and 100,000 selected cells. Encrypted and damaged files are rejected. Spreadsheet styling and recalculation are not supported.

FAQ

What does JSON to XLS keep?

XLS is useful for legacy Excel readers. This tool creates an Excel 97-2003 values-only workbook with up to 256 columns per sheet.

Will formula-like strings run?

No. Strings beginning with an equals sign are stored as text. This converter does not create spreadsheet formulas.

Will my file be uploaded?

No. The converter and its libraries run in your browser. File contents and names are not sent to a server.

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