Convert XLSX to CSV
Last updated: June 1, 2026To convert XLSX to CSV, drop your XLSX file into the converter above, then download the CSV result. It's free, needs no sign-up, and there's no watermark. Your file is processed on our secure server over an encrypted connection and deleted automatically right after — never stored or shared.
Why convert XLSX to CSV?
Turn an Excel .xlsx workbook into a clean, plain-text .csv that almost any program can read. XLSX is a zipped, formula-and-formatting-rich spreadsheet; CSV is a flat, comma-separated table of raw cell values with no styling, charts, or extra sheets. This converter uploads your file over secure HTTPS, runs it through LibreOffice on our server, and returns a UTF-8 CSV in seconds, then deletes the upload right after. Free, no sign-up, no watermark.
- Importing a spreadsheet into a database, CRM, or marketing tool (MySQL, PostgreSQL, Salesforce, Mailchimp) that only accepts CSV uploads and rejects native .xlsx files.
- Feeding tabular data into a script or data pipeline — pandas read_csv(), R, an ETL job, or a Git-tracked dataset — where plain text is far easier to parse and diff than binary XLSX.
- Sharing just the raw numbers with a person or system that chokes on formulas, pivot tables, or macros, so you need clean values-only output that opens anywhere.
XLSX vs CSV
XLSX · Microsoft Excel
XLSX is the modern Excel spreadsheet format with formulas, multiple sheets and charts, editable in Excel, Google Sheets and LibreOffice Calc.
CSV · Comma-Separated Values
CSV is plain-text tabular data — one row per line, values separated by commas. Universally importable into any spreadsheet or database, but it stores only values, not formatting or formulas.
XLSX to CSV — frequently asked questions
My workbook has several sheets — what happens to them?
CSV is a single-table format, so it can only hold one sheet. The converter exports the first (active) worksheet. If you need another tab, reorder the sheets in Excel so the one you want comes first, or convert the file once per sheet.
Will accented letters, emoji, or Chinese/Arabic characters survive?
Yes. The output is encoded in UTF-8, so non-English text and special symbols come through intact. That avoids the garbled mojibake you often get when Excel's own Save as CSV uses a locale-specific encoding instead.
Do formulas and formatting carry over to the CSV?
No, and that's expected. CSV keeps only the calculated cell values as plain text. Formulas are replaced by their results, and colors, fonts, merged cells, charts, and images are dropped. Values containing a comma are automatically wrapped in quotes so columns stay aligned.
How do I convert XLSX to CSV?
Drop your XLSX file (or several) into the converter, confirm CSV is selected as the output, click convert, then download the CSV file. The whole thing takes a few seconds.
Is this XLSX to CSV converter free?
Yes — it's completely free with no watermark and no sign-up required.
Is it safe to convert XLSX to CSV here?
Yes. Your XLSX file is sent over an encrypted HTTPS connection to our conversion server, converted, and deleted automatically moments later — it is never stored, logged or shared.
Can I convert multiple XLSX files at once?
Convert one XLSX file at a time — finish one, then drop in the next.
Does it work on mobile?
Yes — the converter runs in any modern browser on phones, tablets and desktops.