Convert Excel to CSV
Choose a spreadsheet, preview a worksheet, and export that sheet as CSV without uploading the file to ToolZone.
Worksheet preview
The first 25 rows and 12 columns will appear here.
Convert an Excel worksheet to CSV
- Choose an XLSX, XLS, or CSV file from your device.
- Select the worksheet you want to export.
- Review the preview and choose a comma, semicolon, tab, or pipe delimiter.
- Keep the UTF-8 option enabled when the file contains international text.
- Convert, download, and reopen the CSV to verify the data.
One worksheet per CSV file
CSV is a plain-text table, so it cannot preserve multiple worksheets, cell formatting, charts, images, comments, macros, or workbook relationships. This converter exports one selected worksheet at a time. Use the Excel Merger when you need to combine workbooks while retaining separate sheets in an XLSX file.
Check dates, formulas, and identifiers
The export uses the values available to the browser parser. Formula cells normally export their cached result rather than the formula itself. Spreadsheet applications may reinterpret dates, long numbers, leading zeros, and codes when reopening CSV. Compare critical columns with the original before using the file for an import, report, or regulated process.
Privacy and parser loading
The selected file is processed in your browser and is not uploaded to ToolZone. The spreadsheet parser loads from the official SheetJS CDN, so an internet connection is needed for that library. Encrypted, damaged, very large, or uncommon workbook features may not load correctly.
Related spreadsheet tools
Use CSV Cleaner to normalize a CSV table, CSV to JSON for structured data, or Excel Merger to combine compatible files.