Excel Tools
Excel Tools
Upload Excel (.xlsx/.xls/.ods) or CSV files and convert to JSON, CSV, XML, or HTML; export JSON or CSV data to a downloadable .xlsx file — fully client-side using SheetJS.
Excel Tools
Upload Excel (.xlsx/.xls/.ods) or CSV files and convert to JSON, CSV, XML, or HTML; export JSON or CSV data to a downloadable .xlsx file — fully client-side using SheetJS.
Common uses
- Convert an Excel report to JSON
- Export a JSON data array to a .xlsx file
- Read a multi-sheet workbook and get CSV
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Frequently asked questions
How do I convert an Excel file to JSON?
Open the Excel → Data tab, upload an .xlsx, .xls or .ods file and choose JSON as the output. CSV, XML and HTML are also available.
How do I create an .xlsx file from JSON or CSV?
Use the Data → Excel tab with JSON, CSV, XML or YAML input and download the generated .xlsx.
Can I read a multi-sheet workbook?
Yes, the Excel → Data tab shows a sheet selector for workbooks with several sheets, and you convert one sheet at a time to JSON, CSV, XML, YAML or HTML.
Can I compare two Excel files?
There is a Compare tab for comparing spreadsheet data.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.