JSON to Excel Converter

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A real .xlsx workbook, not a renamed CSV: the actual SpreadsheetML parts a spreadsheet application expects, assembled entirely in your browser. The document has to be an array of objects, or a single object as a one row sheet, the same shape the CSV converter accepts; an object whose every value is itself an array becomes multiple sheets instead, one per key, each converted the same way, so a document already organised into named sections needs nothing extra to become named tabs. A nested object or array is flattened into dot path columns rather than written as JSON text, since a spreadsheet cell has nowhere else to put it; an empty object or array is kept as the literal text {} or [] rather than silently dropped. Every string cell is written in a way a spreadsheet application never reinterprets as a formula, no matter what character it starts with, so there is no formula injection character to guard against by hand the way a CSV export has to. A spreadsheet's own number is a double precision float, exact only up to about 15 or 16 digits; a whole number past that is written as text instead, so its exact digits survive rather than being silently rounded. This produces a spreadsheet, not JSON, and there is no reliable way back, so this is one direction only, the same as this site's other generators.

Come usare

1. 1 Paste your JSON on the left, or load the sample.
2. 2 Name the sheet and choose whether to bold the header row, then press Convert. You can pick which columns to include once they are detected.
3. 3 Download the result as an .xlsx file. There is nothing to copy or preview, since this is a binary spreadsheet, not text.