AFA File

What are AFA files and how to open them

Are you having problems opening an AFA 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 AFA files.

What is an AFA file?

An .AFA file is an Astrotite Compressed Archive file.

Astrotite Compressed Archive is a proprietary archive format for bundling multiple files into a single container that compresses, encrypts, and protects them. It is created using the Astrotite software by Fantiusen Software, which was principally developed to offer faster compression and decompression than typical tools like ZIP or RAR, alongside built-in encryption and corruption protection.

When someone uses Astrotite to generate an .AFA archive, it typically compresses the selected files under the AFA format, optionally encrypts them (often using AES-256 and CAST-256), and adds mechanisms for detecting and sometimes repairing corruption. These archives facilitate secure storage or transfer of data, especially on Windows systems; Astrotite also supports splitting large archives into multiple parts and includes tools for offline or online recovery via associated repair metadata.

Files in this format begin with the ASCII signature ASTVSA at offset zero (hex bytes 41 53 54 56 53 41).

How to open AFA files

Important: Different programs may use files with the AFA file extension for different purposes, so unless you are sure which format your AFA file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested three different AFA openers which you will find listed below.

Last updated: August 17, 2026

Various apps that use files with this extension

These apps are known to open certain types of AFA files. Remember, different programs may use AFA 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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File.org helps thousands of users every day, and we would love to hear from you if you have additional information about AFA file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.