About Excel ↔ JSON
Excel-JSON converter converts between Excel tables and JSON data online, supports XLSX/CSV formats, auto type recognition, nested structure handling. Essential for data import/export, API integration, data analysis.
How to Use
- Upload Excel file or paste JSON
- Choose conversion direction
- Optional field mapping and type conversion
- Download or copy result
Frequently Asked Questions
- Does Excel→JSON lose formatting?
- Yes. Conversion only keeps data content (text/numbers), loses styles/formulas/charts/merged cells. Suggest calculating formulas to values before conversion.
- How to handle multiple sheets?
- Each sheet converts to separate JSON array, or merge into one object containing multiple arrays. Specify which sheet to convert or convert all.
- JSON→Excel date format wrong?
- JSON dates are strings (ISO 8601) or timestamps. Converting to Excel needs specifying date columns and converting to Excel date format, else displays as text.