Some times its hard to type control code characters in serial monitor, this might be helpful in that situation. I would recommend you to open this file in Notepad++. Otherwise you won't see anything in place of that characters, while viewing this file.
NON - Printable character file link: https://u.pcloud.link/publink/show?code=XZ56GkVZaLV3DspEYzhxD3Uo4r4DV8yLXfdX