Excel to CSV converter
Get a plain CSV file out of any XLSX spreadsheet.
Runs in your browser. Your files never leave your device.
- Pick the sheet
- Preview before download
- Nothing uploaded
How to convert Excel to CSV
- Drop your XLSX file here.
- Choose a sheet if the file has more than one.
- Check the preview, then download the CSV.
What changes when you export to CSV
| Excel feature | In the CSV |
|---|---|
| Formulas | The calculated value only, not the formula text |
| Number formatting | Plain numbers, no currency symbol or thousands separator |
| Multiple sheets | Only the sheet you pick |
| Merged cells | The value appears once; the rest of the merge is blank |
Tips for exporting cleanly
- Pick the right sheet from the dropdown. The tool loads whichever sheet is first in the file, which is not always the one you want.
- Check the preview before downloading. It shows the same rows and values the CSV will contain.
What a CSV cannot keep from the spreadsheet
- Cell colors, fonts and borders.
- Charts and embedded images.
- Named ranges and formulas.
- Frozen panes, filters and any other view settings, since a CSV is just rows of plain text.
Excel to CSV FAQ
Which sheet does this convert?
The first sheet by default. If the file has more than one, a dropdown lets you pick any of them.
What happens to formulas?
Excel already calculated a value for each formula, and that value is what gets saved to the CSV. The formula itself is not exported.
Does this support the older xls format?
No, only xlsx. Open an xls file in Excel or Google Sheets and save it as xlsx first.
Are dates kept in the CSV?
Yes, written out the same way Excel displays them in the sheet.
Can it open a password-protected workbook?
No. An encrypted or password-protected xlsx file cannot be read in the browser. Open it in Excel, remove the password, save, and convert the unprotected copy.
What happens to blank rows or columns in the sheet?
They come through as empty cells in the CSV, keeping the same row and column positions they had in the spreadsheet.
Can it combine several sheets into one CSV?
No, it converts one sheet at a time from the dropdown. Combining sheets would mean deciding how to stack or align columns that can differ from one sheet to the next, so that choice is left to you.
Does it handle a spreadsheet with a lot of columns?
Yes. The on-page preview only shows the first 15 rows to stay responsive, but the downloaded CSV always includes every row and every column.