Download ReShade + SweetFX 2.0 here and extract it into a new folder. In the SweetFX folder, open SweetFX_settings.txt and change the value of #define USE_ASCII to 1.

Use the SUBSTITUTE () function to remove non-printable characters in Excel Excel offers a CODE () function which returns the ASCII code for a given character.

Each byte in the file contains one character that conforms to the standard ASCII code (see ASCII chart). Program source code, batch files, macros and scripts are straight text and stored as ASCII ...

[Andrew Ray’s] answer? Produce simulated waveforms using ASCII text. The process uses some custom tools written in OCaml, but the code is available for you on GitHub.