Broad format conversion
Convert common spreadsheet and structured-text formats without a server upload.
Spreadsheet and data converter
Drop a file hereXLSX, XLS, ODS, CSV, TSV, and JSON
XLSXXLSODSCSVTSVJSON
Convert sheets locally, preview rows, and export one sheet or every sheet.
orFiles are processed on your device and never uploadedConvert Excel, CSV, TSV, and JSON locally
Read and convert XLSX, XLS, ODS, CSV, TSV, and JSON in your browser. Select a sheet, preview the first 20 rows, or package every sheet in a ZIP.
Sheet selection and preview
Inspect sheet names and the first 20 rows before generating a result.
Multi-sheet export
Keep sheets in XLSX or export separate CSV, TSV, or JSON files in a ZIP.
Spreadsheet conversion FAQ
Are files uploaded?
No. Reading, previewing, conversion, and ZIP creation happen locally in the browser.
Does CSV preserve Excel formatting and formulas?
No. CSV, TSV, and JSON preserve data values, not styles, charts, macros, or workbook formula structure.
How are multiple sheets exported?
XLSX keeps multiple sheets in one workbook. Text formats create one file per sheet and package them in a ZIP.
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