Arrow to CSV converter
To convert Arrow to CSV, drop your Arrow file in the box below. It converts straight away; press Download to save the CSV. It all happens in your browser, so your file stays on your device.
Convert to
Converted on this device, never uploaded
What changes
| Arrow to CSV | What happens |
|---|---|
| Layouts | IPC file (.arrow) and IPC stream (.arrows) |
| Compression read | LZ4 frame and Zstandard |
| Decimals | Written exactly, as text with every digit |
| Dates and times | ISO 8601: 2026-05-04 and 2026-05-04T08:00:00.000Z |
| Nested values | Lists, maps and records become one cell of JSON text |
| Formulas | Cells that start with = + - or @ get a ' in front, so a spreadsheet shows them instead of running them |
How to convert Arrow to CSV
- Add your Arrow. Drop the file in the box, or click to choose it. It becomes CSV straight away.
- Check the result. Look at the preview. The delimiter and value types are set for you; change them if needed.
- Download. Press Download to save the CSV.
Why CSV
Open an Arrow IPC file from pandas, Polars or DuckDB in a spreadsheet.
Questions
Feather version 2 is an Arrow IPC file, so it converts the same way. Feather version 1 is not read.
No. It is read and converted in your browser, so the data stays on your device.
No. The conversion happens right in your browser, so your file stays on your device. There is no account to make, either.