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Excel XLSX to JSON.

Convert a selected worksheet into JSON object rows.

Limits & supported formats

20 MiB combined input. Office archives: 1,000 entries and 50 MiB expanded. Excel: 50,000 stored workbook cells; selected sheet maximum 20,000 cells, 2,000 rows and 100 columns. Unique nonempty text headings required in first row. Cached values retain numbers, booleans and strings; dates use ISO text.

20 MiB combined input. Office archives: 1,000 entries and 50 MiB expanded. Excel: 50,000 stored workbook cells; selected sheet maximum 20,000 cells, 2,000 rows and 100 columns. Unique nonempty text headings required in first row. Cached values retain numbers, booleans and strings; dates use ISO text.

How to use Excel XLSX to JSON

Choose the input, adjust settings and generate locally. Inspect the exported result before sharing.

How it works

Convert a selected worksheet into JSON object rows. Unique nonempty text headings required in first row. Cached values retain numbers, booleans and strings; dates use ISO text. Documents remain on your device.

Example

Choose a local file or use the displayed editable text example.

Questions about Excel XLSX to JSON

Is Excel XLSX to JSON free, and do I need an account?

Yes. This tool is free to use in your browser without an account. Processing takes place on your device.

What are the limits and what should I check?

20 MiB combined input. Office archives: 1,000 entries and 50 MiB expanded. Excel: 50,000 stored workbook cells; selected sheet maximum 20,000 cells, 2,000 rows and 100 columns. Unique nonempty text headings required in first row. Cached values retain numbers, booleans and strings; dates use ISO text. Review the result before using it in your work.

Is my input sent to a server?

Your input is processed in your browser and is not uploaded by this tool. Files and pasted text are cleared when the page is refreshed. Normal website requests are still required to load the page and its libraries. Read the privacy explanation.