CSV to XLSX
Create an Excel-compatible file for Microsoft Excel or Google Sheets.
Private spreadsheet conversion
Convert XLSX to a configurable CSV
Extract the worksheet and columns you need, then produce CSV tailored for spreadsheets, databases, or import tools.
Upload a spreadsheet
Drag and drop a CSV, XLSX, or XLS file. All processing happens locally in your browser with SheetJS.
No upload. No account. Your file stays on this device.
XLSX to CSV
Export spreadsheet data as CSV for use in other systems.
Clean and rename
Remove empty rows and rename columns before export.
Batch conversionConvert several CSV or spreadsheet files locally. A failed file does not stop the rest of the queue.
Batch conversion
Convert several CSV or spreadsheet files locally. A failed file does not stop the rest of the queue.
Up to 20 files and 250 MB total per queue. Two files are processed at a time to limit memory use.
Drop CSV, XLSX, or XLS files here
No files are queued. Source files are never included in ZIP downloads.
Export only the XLSX data you need
Preview and validate the worksheet, select visible columns or filtered rows, and choose CSV settings explicitly before download.
How to use this tool
- 1Select an XLSX workbook.
- 2Choose the worksheet, rows, and columns.
- 3Set CSV compatibility options and download.
Frequently asked questions
Can I export filtered rows only?
Yes. Choose between all rows and the currently filtered rows in export settings.
Can I make a CSV for Excel?
Yes. UTF-8 with BOM and CRLF line endings are available for common Excel workflows.
Are password-protected XLSX files supported?
No. Password-protected or encrypted workbooks are not currently supported.