Hex Editor - an application for editing the binary data, the data is represented in the "raw" - as a sequence of bytes.

Since Hex Editor is quite a versatile tool it is not possible to describe all variants of it's use. Use your fantasy;-)

This is a tool for engineers. If You don't know what for use it - please DO NOT INSTALL and DO NOT RATE this app.
From version Hex Editor Free 3.2.1:
Fix the app
Variant
Arch
Version
DPI
(Android 2.3+)
Latest: 3.1.31 on January 31, 2017
All versions
April 2, 2019
March 18, 2019
January 29, 2018
January 31, 2017