Excel to CSV
Open an Excel workbook and save any sheet as CSV. Choose the delimiter, keep accented letters intact with UTF-8, and get dates in a format every system reads.
INPUT
Open an Excel file (.xlsx)
Drop a file here or use Open file.
OUTPUT
Runs entirely in your browser. Nothing you enter is sent to a server.
How to convert Excel to CSV
Open the workbook
Drop an .xlsx file onto the input or use Open file.
Pick the sheet
Choose the sheet to convert and the delimiter. A preview shows the result.
Download the CSV
Download the file for your import, database or script.
Values, not formulas
CSV holds values only. Each cell is exported with the value Excel last calculated, so formulas, formatting and charts are left behind.
Dates that travel
Excel stores dates as serial numbers. They are converted to ISO dates such as 2026-11-02, which databases and programs read the same way in every country.
Frequently asked questions
Are old .xls files supported?
No, only .xlsx and .xlsm. Open an .xls file in Excel or LibreOffice and save it as .xlsx first.
What happens to merged cells?
Excel keeps the value of a merged area in its top-left cell, so that cell has the value and the others stay empty.
Is my workbook uploaded?
No. It is opened and converted in your browser.