Excel to CSV Converter (XLSX, XLS, ODS to CSV)

CSV is the plain-text table format almost every database, CRM, mail tool and script accepts, while Excel files are not. This converter saves any sheet of an .xlsx, .xlsm, .xlsb, .xls or OpenDocument .ods workbook as CSV. You choose the sheets, the delimiter, formatted or raw values and the line endings. A UTF-8 byte order mark is added by default, so Korean, Japanese and accented text open correctly when the CSV goes back into Excel. Conversion happens in your browser; workbooks are not uploaded.

How to use this tool

1. Choose one or more spreadsheet files.
2. Pick the first sheet, every sheet, or name the sheets you want.
3. Choose the delimiter (comma, or semicolon for European Excel), values as shown or raw, and keep the UTF-8 BOM on for Excel.
4. Download the CSV files, or copy the CSV text of a small sheet.

Formula

Each row → one line; cells joined by the delimiter. A cell that contains the delimiter, a double quote or a line break is wrapped in quotes, and its quotes are doubled (RFC 4180).

Formatted values are the text Excel shows, such as 1,234.50, 12% or 2/29/2024. Raw values give the underlying number with up to 15 significant digits, TRUE/FALSE and dates as YYYY-MM-DD, read from Excel's serial date number so the date never shifts with your time zone. Every row has the same number of columns, up to the last used column. Merged cells keep their value in the first cell, as Excel does. Formulas are written as their last calculated result.

Example

A sheet with the header name, age and the rows Ada, 36 and Lin, 29 becomes the CSV text name,age / Ada,36 / Lin,29 with Windows line endings: 3 rows × 2 columns. With "Every sheet", a workbook with the sheets Sales and Costs gives report-Sales.csv and report-Costs.csv.