XLSX → CSV / online converter

XLSX to CSV Converter

Turn an Excel workbook into a plain CSV file that any database, script or spreadsheet app can import. The first sheet becomes rows of comma-separated values.

01 / how to

How to convert XLSX to CSV

01

ADD YOUR XLSX

Drop the XLSX file into the box above or choose it from your device.

02

CONVERT TO CSV

CSV is already selected. Press Convert and wait a few seconds.

03

DOWNLOAD

Save the finished CSV file. The original is deleted from our server.

02 / what you get

What happens to your data

Kept

  • Every row and column of the first sheet, with the first row used as the header
  • Numbers as numbers and text as text — a value like 007 stays 007
  • Dates as readable text, for example 2026-01-15
  • Non-Latin letters (Ukrainian, Polish, Chinese): the file is saved as UTF-8 with a BOM so Excel opens it correctly

Good to know

  • Only the first sheet is converted. If your workbook has several sheets, move the one you need to the front in Excel first, or convert to JSON, which keeps every sheet.
  • Formulas are saved as their last calculated result, not as formulas.
  • Colors, fonts, column widths, merged cells, charts and images do not exist in CSV and are dropped.
  • Commas, quotes and line breaks inside a cell are wrapped in quotes automatically, so the columns stay aligned.
  • If Excel opens the CSV as a single column, your region uses a semicolon as the list separator: open it with Data → From Text/CSV and pick the comma delimiter, or use TSV instead.

03 / formats

XLSX vs CSV

XLSX

An XLSX file is a modern Excel workbook: sheets of cells with numbers, text, formulas and formatting. It is the default for spreadsheets today. Converting it gives you the first sheet as plain data (JSON keeps every sheet), so other tools can read it.

Used in: Excel · Business reports · Financial data

CSV

A CSV (Comma-Separated Values) file stores tabular data as plain text — each line is a row, commas separate the columns. It's the most universal way to move spreadsheet data between programs: Excel, Google Sheets, databases, and most apps can all read it.

Used in: Excel & Sheets exports · Database exports · Data sharing

04 / more

More conversions

From XLSX

XLSX to JSONXLSX to XMLXLSX to XLSXLSX to YAMLXLSX to TSV

To CSV

JSON to CSVXML to CSVYAML to CSVTSV to CSVXLS to CSV

Have a different file? Open the main converter — it detects the format for you.