Are merged cells handled?

Merged cell values are placed in the top-left cell; other merged positions export empty.

Excel to CSV

Convert Excel workbooks (.xlsx, .xls) to CSV files — all sheets or selected. Fast, private, and secure browser-based tool wit

Your files never leave your device. Processed locally. 100% private.

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Complete your task perfectly in just three straightforward steps.

Drop the .xlsx or .xls file.

Convert a single sheet or all sheets as separate CSV files.

Download the CSV or a ZIP of all CSV files.

Everything you need to know about the Excel to CSV.

Can I export all sheets at once?

Yes — download a ZIP with one CSV per sheet.

Are formulas evaluated?

Yes — formula cell values (not formulas) are exported.

Is my file uploaded?

No. Everything runs locally using SheetJS in your browser.

File size limit?

Free up to 10 MB, Pro up to 200 MB.

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Convert CSV files to formatted Excel workbooks (.xlsx). Processed entirely in your browser for 100% data privacy and zero fil