Workspace
Free spreadsheet converter — XLSX to CSV, JSON and PDF
Convert Excel, CSV, and JSON files locally. Select sheets, preview tables, and download the output.
Drop a XLSX file here
or click to browse
Preview
Upload a file to see a preview of the first rows.
About the Spreadsheet Converter
Convert workbooks, database exports and tabular data without exposing confidential numbers. Powered by SheetJS, Convertoza reads Excel and delimited files locally in your browser.
Export clean CSV for database imports, TSV for tab-separated tools, JSON arrays for developers and API mock-ups, or a printable PDF table. Pick the sheet you need from multi-tab workbooks and preview the data before downloading.
Supported formats
| Input | XLSX, XLS, CSV, TSV, JSON |
|---|---|
| Output | CSV, TSV, JSON, XLSX, PDF |
How it works
1
Add a spreadsheet
Drop an Excel, CSV or TSV file.
2
Select sheet & format
Choose the worksheet and output format.
3
Download
Save the converted data instantly.
Privacy pledge
Your files are processed in your browser and are never uploaded to Convertoza servers.
Frequently asked questions
How are formulas handled?
The last calculated values stored in the workbook are exported.
Can I choose which sheet to convert?
Yes. Multi-sheet workbooks let you pick the worksheet to export.
Is my spreadsheet uploaded?
No. Conversion happens entirely in your browser.