Convert a workbook or a CSV
Drop one or more files and choose the target format. Each sheet becomes a CSV, a workbook or a JSON table.
What this tool does
- Input: XLSX and XLSM, old XLS (Excel 97-2003), ODS, CSV (any encoding), JSON.
- Output: XLSX, CSV for Excel (comma), CSV for European Excel (semicolon), ODS, JSON.
- Dates stay dates and numbers stay numbers, when the target format allows it.
- A multi-sheet workbook to CSV: one file per sheet, in a ZIP archive.
What it does not do: Values are converted, not formulas, charts or formatting. Old .xls files (Excel 97-2003) are read for their values, password included: you are asked for it when you drop the file.
No file is uploaded. Turn off your network once this page has loaded: the tool keeps working. How to check it yourself.
Other tools
- Open a large file : Over a million rows, several gigabytes: browse, filter, sort, export.
- Automatic pivot table : Useful pivots suggested, dates grouped, the table and its chart.
- Summarise a column : The distinct values of a column and their count, with a total or an average if needed.
- SQL queries : SELECT, JOIN, GROUP BY on your files, with no database.
- Unpivot or pivot : One column per month becomes one row per month, and the reverse.