Install bless by entering the following commands in the terminal:
sudo apt update sudo apt install bless
A full featured hexadecimal editor
Bless is a binary (hex) editor, a program that enables you to edit files as a sequence of bytes written for the GNOME Desktop. Main features are: . * Efficient editing of large data files. * Multilevel undo - redo operations. * Customizable data views. * Fast data rendering on screen. * Multiple Tabs. * Fast Find and Replace operations. * Conversion Table. * Advanced Copy/Paste capabilities. * Multi-threaded search and save operations. * Export to text and html (others with plugins). * Extensibility with Plugins.