JSON to Excel Guide: Export to .xlsx With Formatting
Export JSON data to Excel XLSX files using SheetJS or openpyxl. Add headers, freeze rows, set column widths, and apply cell formatting.
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Tags: data, json, excel
JSON to Excel Guide: Export Data to .xlsx With Headers and Formatting Exporting JSON to Excel is more involved than exporting to CSV. CSV is plain text — Excel adds cell formatting, column widths, data types, multiple sheets, and formulas. This guide covers the two main approaches — SheetJS in JavaScript and openpyxl in Python — plus specific techniques for headers, auto-fit column widths, and multi-sheet workbooks. --- Why Not Just Use CSV? CSV is fine for data transfer. Excel adds value when you need: Formatting: bold headers, alternate row colors, number formats. Multiple sheets: raw data on Sheet 1, summary on Sheet 2. Column widths: auto-fit so nothing is truncated. Data types: dates as real dates, numbers as numbers (not strings). Formulas: calculated columns like . If you just need…
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