Spreadsheet Converter
Convert between Excel, CSV, JSON, TSV and ODS.
Drop your files here
or
Browse filesSupports: XLSX, XLS, CSV, TSV, JSON, ODS, Numbers
Files never leave your device
This tool runs entirely in your browser. Your files are never uploaded anywhere.
How to use it
- 1
Drop your spreadsheet files.
- 2
Choose the target format and options.
- 3
Convert and download.
Questions & answers
Accented characters look broken in Excel — what can I do?
Keep “Excel friendly (UTF-8 BOM)” on when converting to CSV, and pick the semicolon delimiter if needed.
What about Excel files with several sheets?
When converting to CSV or JSON, each sheet becomes its own file.
Are my files uploaded anywhere?
No. Everything happens in your browser, so your files never leave your device.
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