All about FEATHER Files

The FEATHER file type is primarily associated with pandas.

FEATHER	File extension: FEATHER
	File type:	binary data file

What is a FEATHER file?

FEATHER files mostly belong to pandas. FEATHER files use the Apache Arrow data format to store data frames in a binary structure. This design enables fast, zero-copy reading and writing operations that are ideal for high-speed data exchange.
They are built for cross-language data handling and are routinely accessed via pandas in Python.
Consider these points:

Efficient storage for tabular data
Quick I/O with minimal overhead
Interoperability between different programming environments
Smooth data sharing in analytics workflows

FilExt.com tip: Further details can be found on the pandas website.

How to open a FEATHER file

You need a suitable software like pandas to open a FEATHER file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your FEATHER file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a FEATHER file directly in the browser:. Just drag the file onto this browser window and drop it.

Online FEATHER Text Viewer

Choose your .feather file to analyze

or drag and drop it here

Online File Viewer

✈

Read our privacy guarantee in Filext’s terms and privacy policy

Please allow ads on our site

This helps us keep our servers running. Then re-upload your file to view it.

Click here to see how to disable the ad blocker for filext.com

Programs that open and convert FEATHER files:

pandas
See the previous paragraphs to learn more about the main application. FEATHER files are often referred to as pandas data files because this type of file is primarily created or used by this software.
pandas (Python)
The .FEATHER file format is a lightweight, language-agnostic binary file format for storing data frames. It is designed for fast data serialization and deserialization, making it ideal for data exchange between different programming languages and systems. The format is based on the Apache Arrow columnar memory format, which enables efficient data access and manipulation. This format is particularly well-suited for scenarios requiring high-performance data transfer and processing, such as data analysis and machine learning. This file format is classified as Data Format.

FEATHER format details:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. Knowledge is power - this also applies when dealing with unknown or faulty files. In the following you will find our evaluation of the FEATHER files:

As a file extension, FEATHER isn't very common and mainly uses a defined FEATHER format. The following file formats are most commonly found in FEATHER files:

90% of all FEATHER files start with the bytes ARROW1, which are crucial for this file format. They consist of unreadable binary data. FEATHER files can be up to 270 MB in size, but are often around 8 KB - 23 MB. It is a modern file type. The following keywords are characteristic: ARROW1, "range", "name", null, "start", stop, {"index_columns": [{"kind", "step": 1}] and pandas. The following filename is common: backtest-result-2020-06-01 10-30_market_change.feather. Files like these are about usdt, data, change, market, futures, backtest, result and index.
9% of all FEATHER files start with the magic bytes FEA1, which are always the first bytes of this file format. These are binary files, so they do not contain words or text. The files are on average 8 MB in size and range from 24 KB to 180 MB. The files contain the following words: FEA1. Such files are related to person-related data.

All other FEATHER files (1%) have different formats. Often described as prediction, inch, usdc, features, results or month. Drag & drop your file here to see the file format and a preview of your FEATHER file!

Technical Data for FEATHER File Extension

File classification:

Data

Related files:

parquet, h5, pkl, arrow, feature, pyc, whl, csv, json

a feather binary data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with FEATHER files

Associate the FEATHER file extension with the correct application.
Update your software that should actually open binary data files. Because only the current version supports the latest FEATHER file format. Search, therefore, e.g. on the manufacturer website after an available pandas update.
To make sure that your FEATHER file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .FEATHER file online - secure, fast, and no downloads needed.