Is converting CSV to XLSX free?

Yes. ConvertBoy is free with no daily limit, no watermark and no sign-up.

Is there a file size limit?

No. Your own device does the work, so the only limit is your device's memory. Very large videos take longer on slower computers.

No. The conversion happens inside your browser. Your CSV files never leave your device, and nothing is kept after you close the tab.

Yes. It works in Safari on iPhone and Chrome on Android, as well as on any computer.

Convert CSV files to XLSX for free. No size limit, no sign-up, nothing uploaded.

Choose your CSV files or drop them on this page. You can add as many as you like.
XLSX is already selected. Press Convert, or Convert all for several files.
Press Download. With several files you can download them all as one ZIP.

CSV is a plain table with commas or semicolons, opened by any program. XLSX is the Excel spreadsheet format.

Is converting CSV to XLSX free?: Yes. ConvertBoy is free with no daily limit, no watermark and no sign-up.
Is there a file size limit?: No. Your own device does the work, so the only limit is your device's memory. Very large videos take longer on slower computers.
Are my files uploaded anywhere?: No. The conversion happens inside your browser. Your CSV files never leave your device, and nothing is kept after you close the tab.
Does it work on a phone?: Yes. It works in Safari on iPhone and Chrome on Android, as well as on any computer.