Turn an Excel workbook into plain CSV files, sheet by sheet.
Formulas become their values. Dates are written as yyyy-mm-dd. Turn BOM on if the file will be opened in Excel, so accents and other scripts show correctly.
Drop an .xlsx, .xls, .xlsm or .ods file.
Pick the sheets you want and how to separate columns.
One sheet gives a CSV. Several sheets give a ZIP with one CSV each.
No. It is read and converted in your browser.
Each formula becomes the value it shows. A CSV file cannot hold formulas.
On, a cell is written the way Excel shows it, for example 1,234.50 or a date as 2026-11-05. Off, you get the stored value, such as 1234.5.
A BOM is a small marker that tells Excel the file is UTF-8, so accents and non-Latin scripts show correctly when the CSV is opened in Excel. Turn it off for programs that do not expect it.
No. Remove the password in Excel first.