JS-XLSX (XLSX/XLSB/XLSM) Live Demo
Output Format:
CSV
JSON
FORMULAE
Drop an XLSX or XLSM or XLSB file here to see sheet data.
... or paste a base64-encoding here
Advanced Demo Options:
Use Web Workers: (when available)
Use Transferrables: (when available)
Use readAsBinaryString: (when available)