AKT File

What are AKT files and how to open them

Are you having problems opening an AKT 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 AKT files.

What is an AKT file?

An .AKT file is an AKT Compressed Archive file.

AKT Compressed Archive files hold data that has been packed together and compressed using AKT, a compression utility written in Hungary. These archives bundle one or more files into a single file and reduce their size, typically to save storage space or facilitate distribution.

These files are created by the AKT compression program. Once compressed, they must be decompressed using the same or compatible software before the individual files inside them can be accessed. Because AKT is old and largely obsolete, modern archive tools may not support it directly without special plugins, converted utilities, or legacy versions of AKT itself.

Files in this format begin with the byte sequence 41 4B 54 09 09 (ASCII "AKT" followed by two control bytes) at the very start (offset 0), which identifies them as AKT Compressed Archive files.

How to open AKT files

Important: Different programs may use files with the AKT file extension for different purposes, so unless you are sure which format your AKT 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 AKT 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 AKT files. Remember, different programs may use AKT files for different purposes, so you may need to try out a few of them to be able to open your specific file.

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 AKT file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.