Is Excel to CSV free?

Yes. Excel to CSV is free with no account, no watermark, and no conversion limit. You can convert as many XLSX spreadsheets into CSV as you like. The tool runs in your browser at no cost, so there is no premium tier and no cap that interrupts you after a few files have been converted.

What gets lost in the conversion?

CSV is a plain-text table, so it keeps your cell values, rows, and columns but drops spreadsheet-only features that it cannot represent, such as formatting, colors, charts, and multiple sheets. Formulas are exported as their computed results rather than the formula itself. For a data import this is exactly right, since importers want clean values, not styling.

Can it convert multiple sheets?

CSV holds a single table, not a multi-sheet workbook, so the tool exports one sheet to one CSV file. If your workbook has several sheets, convert them one at a time to produce a CSV for each. This matches how CSV is designed to work and how import tools expect to receive a single flat table.

Are my files uploaded?

No. Excel to CSV converts locally in your browser. Your workbook is read and written to CSV in memory, then returned as a download without being sent to a server. Nothing is stored or logged, so business records and personal data stay private on your device and are cleared from memory when you close the tab.

What encoding does the CSV use?

The exported CSV uses standard UTF-8 text, which preserves accented characters, symbols, and non-Latin scripts so your data imports correctly into modern databases and apps. Values containing commas or line breaks are wrapped in quotes following CSV rules, so the structure stays intact when another program parses the file.

Does it work on mobile?

Yes. Excel to CSV is responsive and runs in mobile browsers with no app. You can pick an XLSX from your phone, convert it, and download the CSV directly. Because the conversion happens on your device, nothing is uploaded, and the interface stays usable on screens as narrow as 375 pixels with touch-friendly controls.

Excel to CSV — Free Online Tool

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Excel to CSV is a free online tool that converts an XLSX spreadsheet into plain comma-separated CSV in your browser, the universal format that databases, scripts, and import tools all accept.

Why convert Excel to CSV

Many systems cannot read the rich XLSX format and expect plain CSV instead: database importers, command-line scripts, data pipelines, and countless web apps all ask for it. CSV strips a spreadsheet down to raw rows and columns of text, which is the lowest common denominator that almost every program can parse, making it ideal for moving data between tools.

What is kept and what is dropped

Conversion keeps the cell values, the rows, and the columns, which is everything a data import needs. It deliberately drops spreadsheet-only features that CSV cannot represent, such as formatting, colors, multiple sheets, charts, and formulas. Formulas are exported as their computed results, so the CSV contains the values you see rather than the underlying calculations.

Single sheet output

Because CSV is a flat format, it holds one table, not a multi-sheet workbook. The tool exports the active or first sheet to CSV; to convert several sheets you export them one at a time. This is expected behavior for CSV and matches what import tools want, which is a single clean table of values.

Private and local

Excel to CSV runs entirely in your browser. Your workbook is read and written to CSV locally and is never uploaded or stored, so business and personal data stay on your device. The conversion is fast even for large sheets and no server sees your data.

How To Use Excel to CSV

Open the Excel to CSV tool and add your XLSX file.
Let the tool read the sheet in your browser.
Wait for the CSV to be generated.
Review the comma-separated output.
Download the CSV file.

Import into a database

Convert a spreadsheet to CSV so a database or admin tool that requires plain text can import the rows.

Feed a script

Export Excel data to CSV so a command-line script or data pipeline can read it cleanly.

Move data between apps

Turn an XLSX into CSV to upload into a web app that only accepts comma-separated files.

What survives the conversion
Item	In XLSX	In CSV
Cell values	Yes	Kept
Formatting	Yes	Dropped
Formulas	Yes	Exported as values
Multiple sheets	Yes	One sheet per file

Related Tools

Key Features Excel to CSV

Files processed locally — never uploaded to any server

Lightning fast browser-based processing with WebAssembly

No account, no signup, no registration required

100% free for all standard use cases

Available in 70 languages worldwide

Works on any device: desktop, tablet, and mobile

Your Files Stay Private

All processing happens in your browser using WebAssembly. Your file is never sent to our servers. We have zero access to your files — guaranteed.

Frequently Asked Questions

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