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NPZ File

What are NPZ files and how to open them

Are you having problems opening a NPZ file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your NPZ files.

What is a NPZ file?

NPZ files have multiple uses, and NumPy Compressed Data Archive Format is one of them. Read more about the other uses further down the page.

NumPy Compressed Data Archive Format

NumPy is an important tool for rapidly processing and working with complex data. Its .npz files store data in a compressed, efficient format, reducing the file size and improving application performance.

Creating .npz files is quick and easy; simply use the NumPy savez function to store one or more NumPy arrays in a single compressed file. Load them back up again with the load function, and you’re ready to go.

These files are particularly useful in scientific or research applications that require large datasets, as they allow users to effectively store and manipulate huge amounts of data all in one place. Moreover, they are easy to share between different NumPy applications or keep for later use.

NPZ files therefore provide a convenient way to handle vast amounts of data quickly, efficiently and securely so researchers can focus on their work without worrying about storage capabilities.

How to open NPZ files

We have identified one NPZ opener that is compatible with this specific type of NPZ file.

Programs that open NumPy Compressed Data Archive Format files


Last updated: February 24, 2023

All known file formats using extension .NPZ

While NumPy Compressed Data Archive Format is a popular type of NPZ-file, we know of 2 different uses of the .NPZ file extension. Different software may use files with the same extension for different types of data.

Npic Bitmap

We know that one NPZ format is Npic Bitmap. We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

While we have not verified the app ourselves yet, our users have suggested a single NPZ opener which you will find listed below.

Various apps that use files with this extension

These apps are known to open certain types of NPZ files. Remember, different programs may use NPZ files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about NPZ file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.