Excel → JSON: what it is and how to use it

What is Excel → JSON?

Excel-to-JSON turns workbooks into structured text for integrations. CodeGrid Tools reads locally; XLSX is not uploaded in the privacy-first model. Huge sheets may need chunking. Free daily allowance and Pro ease heavy use. This guide explains when Excel → JSON helps and how to run it step by step in CodeGrid Tools.

When is it useful?

• Turn Excel files into JSON
• Runs in your browser—no extra software required

How to use it in CodeGrid Tools

Step 1: Upload Excel

Choose an xlsx or xls file.

Step 2: Select a Sheet

In multi-sheet files, choose the target sheet.

Step 3: Get JSON

Copy or download the output.

Tips

• Use an up-to-date browser (Chrome, Edge, Firefox, or Safari).
• Large files may take longer depending on your device.

FAQ

Is XLS supported?
Yes. Both xlsx and xls files can be read, and you can select a sheet. How are formula cells handled?
SheetJS typically returns the calculated value, so you may see the result rather than the formula text itself. What about large sheets?
The preview may be limited to the first rows; check the full JSON output from the downloaded data if needed. Use Excel → JSON →