Install kgb by entering the following commands in the terminal:
sudo apt update sudo apt install kgb
Description:
Archiver for .kgb files
This is an archiver (compressor/decompressor) for files in the KGB format, which provides high compression rates at the expense of memory and CPU time. . This package contains the KGB archiver based on the PAQ6 archiver by Matt Mahoney.
Homepage: https://sourceforge.net/projects/kgbarchiver/
Version: 1.0b4+ds-14
Section: universe/utils