XLSX to CSV — Convert Excel to CSV
Convert an Excel spreadsheet (.xlsx or .xls) to CSV, entirely in your browser. Drop a file and download the CSV of its first sheet. Your spreadsheet is never uploaded.
How to use it
- 1Choose a spreadsheet
Drop an .xlsx or .xls file onto the drop zone, or click to select one.
- 2Get the CSV
The first sheet is converted to CSV and shown instantly.
- 3Copy or download
Copy the CSV or download it as a .csv file. Nothing was uploaded.
Excel to plain CSV
CSV is the lowest-common-denominator format for tabular data — every database, script and tool reads it. This converts the first worksheet of an Excel file into clean CSV, with values properly quoted where needed.
Frequently asked questions
Is my spreadsheet uploaded to a server?
No. The file is read and converted entirely in your browser — it never leaves your device.
Does it convert every sheet?
This version converts the first sheet, which covers most single-table spreadsheets.
Are formulas kept?
Formulas are evaluated to their resulting values, which is what CSV stores.
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