Skip to main content
CSV First Aid

Excel to CSV — XLSX to UTF-8 CSV

Formulas are evaluated to values, date cells become ISO dates (YYYY-MM-DD), output is UTF-8. The first sheet is what comes through — multi-sheet workbooks give you the leftmost one.

Drop your CSV file here

or click to browse

Converts the first sheet of an Excel file to CSV.

How it works

  1. 1Drop your .xlsx file above. It stays in your browser.
  2. 2CSV First Aid reads the first worksheet and extracts all rows and columns.
  3. 3Download the result as a standard UTF-8 CSV file.

FAQ

Which sheet is converted?

The first (leftmost) sheet in the workbook. Multi-sheet support is not available yet.

Are formulas preserved?

No. Formulas are evaluated and only the resulting values are exported to CSV.

Related tools

CSV to Excel (XLSX)

CSV in, .xlsx out. Encoding is detected from the bytes, special characters survive the round-trip, column widths auto-fit. Opens the same in Excel, Google Sheets, and Numbers.

CSV Viewer

A CSV rendered as a real table — zebra rows, a search box, page through 200K rows without ever opening Excel. Encoding and delimiter are figured out from the bytes.

CSV to JSON

CSV in, JSON array out. Headers become the object keys. Works with any delimiter the file uses — comma, semicolon, tab, pipe.