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XLSX to CSV Converter

Convert Excel (XLSX) (.xlsx) to CSV (.csv) via a free public conversion API from the browser. UniConvert is come-convert-leave: no account and no permanent file library.

Open the interactive XLSX to CSV Converter (loads automatically when JavaScript is available).

How to convert XLSX to CSV

Step 1. Choose a .xlsx file from your device.
Step 2. Confirm the output format is .csv — this page is already set to XLSX → CSV.
Step 3. Start the conversion, then preview, copy, or download the .csv result. Nothing is kept for later.

Why convert XLSX to CSV here

XLSX → CSV uses a free public API called directly from the page — no UniConvert servers in the middle.
Category: Office — Word, Excel, and PowerPoint conversions with fidelity noted when partial.
No signup, no subscription, and no permanent storage of your files on UniConvert.
Status: available now.

XLSX to CSV FAQ

Is this XLSX to CSV converter free?

Yes. UniConvert does not require an account for XLSX → CSV. Ads may appear to keep the site free.

Do you store my Excel (XLSX) files?

Files for this pair are sent to the free conversion provider for processing and are not stored by UniConvert afterward.

What is the difference between .xlsx and .csv?

.xlsx is treated as the input format and .csv as the output. Use this page when you specifically need Excel (XLSX) → CSV rather than a generic upload form.

Can I convert other formats in Office?

Yes — open the Office category for other pairs, or use Convert a file to pick any available source and target.

Is office layout preserved for XLSX → CSV?

Layout fidelity depends on the conversion path. Complex documents may look different from Microsoft Office or LibreOffice.