feather
What is a .feather file?
application/vnd.apache.arrow.file
Feather (.feather) is a fast on-disk representation of Apache Arrow tables designed for zero-copy, language-agnostic data exchange between Python (pandas/pyarrow) and R. It preserves column types and structure exactly.
How to use a .feather file
Use an example .feather file to test Arrow/Feather readers, round-trip type fidelity, and Feather-to-Parquet/CSV conversion.
Download example .feather files
- Feather — Arrow IPC TableThe same table as Feather (Arrow IPC file) — the zero-copy on-disk form of an Apache Arrow table. For testing Arrow readers and fast columnar interchange.
- Feather — Null-heavy ColumnsFeather/Arrow IPC twin of the null-heavy table — grouped with the Parquet nulls fixture.
- Feather — Dictionary-encoded ColumnFeather file with dictionary-encoded strings — Arrow IPC edge-case fixture.