Spreadsheet Formats Tools

Spreadsheet format reference and tools: JSON, CSV, HTML and plain text compared on nesting, type fidelity and escaping rules, why CSV needs quoting, why Excel.

表格导出格式速查表 (Spreadsheet Formats) is a frequently consulted reference for developers. Keeping the reference and ready-to-use tools on one page cuts the cost of switching back and forth. All tools below run locally, are free, and need no sign-up.

Related Tools

📗Excel to JSONConvert Excel files (xlsx, xls, csv) to JSON format. Supports nested headers, sheet selection and key mapping. Choose the sheet and header row and keep numbers.
📄Excel to CSVConvert Excel files to CSV with custom delimiter options and batch sheet conversion. Export data for databases or scripts via SheetJS, in the browser.
🌐Excel to HTMLConvert Excel to clean, styled HTML tables with sheet selection and responsive output. Pick a sheet keep merged cells Choose which sheet to export Pick.
📝Excel to TextExtract plain text from Excel with tab or custom delimiter output and batch sheet processing. Choose tab or a custom delimiter process several sheets at once.