This file defines the general input data for generating the COMSOL model via the MCPlas toolbox for the DC argon discharge case using the 23-species RKM and DDAn drift-diffusion approximation described in the manuscript. For the RF case, the file is identical except that the voltage signal frequency must also be specified. Using the DDAc or DDA53 drift-diffusion approximation only requires replacing the DDAn specification in the file with the corresponding one.