Excel on the Web: Professional Data Conversion Without the Bloat
Excel is the world's most popular database, but it's not a formats developers like to work with. If you need to import data from a client's spreadsheet into your app, you need a way to turn those .xlsx files into JSON or CSV.
Privacy First: The Browser Advantage
Spreadsheets often contain sensitive business data, financial records, or user lists. You should never upload these files to an unverified server for conversion. Our Excel converter uses the xlsx library to parse your files locally. Your data never leaves your computer.
Modern Spreadsheet Handling:
- Multi-Sheet Support: Choose exactly which sheet you want to export from your workbook.
- Precision Export: Convert to human-readable (pretty) JSON, minified JSON for production, or standard CSV for database imports.
- Universal Support: Handles
.xlsx,.xls,.ods, and even raw.csvfiles with the same high-performance engine.
📊 Data Tip
Excel often formats dates and numbers in ways that can be tricky (like 'serial dates'). Our converter intelligently maps these to standard formats, but always verify your date columns after conversion to ensure they match your application's expectations.
How to Convert in 3 Steps
- Drop your Excel file into the secure upload area.
- Select the sheet you want to process.
- Choose your output format and download the result.
Professional data handling shouldn't require complex software. Use our browser-native tool to get clean, usable data in seconds.