OOXML Excel Editor & Spreadsheet to JSON Converter
Built for data analysts, developers, and business users who need to turn Excel/OOXML spreadsheet data into clean JSON for APIs, databases, or web apps. Paste your CSV export and get valid JSON in one click — no Excel install, no code, no signup.
Results update live as you type — no button needed. The Example button fills a sample input.
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Why use OOXML Excel Editor?
Instantly convert Excel/OOXML CSV exports into clean, structured JSON
No file upload, no signup, and no software installation required
Handles headers, quoted fields, and multi-row spreadsheet data
Perfect for APIs, databases, and web app data pipelines
Runs entirely in your browser for fast, private conversion
FAQ
What is OOXML and how does it relate to Excel?
OOXML (Office Open XML) is the XML-based file format behind modern .xlsx Excel files. This tool lets you convert spreadsheet data exported from OOXML-based files into JSON without opening Excel.
Do I need to upload my Excel file?
No. Simply export your spreadsheet as CSV or copy the rows and paste them into the input box. Everything is processed in your browser, so your data never leaves your device.
Is this tool free to use?
Yes, the OOXML Excel Editor is completely free. There is no signup, no upload limit, and no hidden cost.
What kind of JSON output does it produce?
It produces an array of objects where each column header becomes a key and each row becomes an object, ready for APIs, databases, or web apps.