Hex Editor Neo supports decoding Intel HEX and Motorola S-Records files. You may decode and put them into any opened document using the Edit » Insert Hex… command or open as new documents using the File » Open » Open Hex… command.
See the Edit » Insert Hex… topic for the window description.
This command provides additional options over generic File » Open » Open File…, which also allows opening the HEX files in the editor.
When the user saves changes made to the opened HEX file Hex Editor Neo uses original file format.