EzPenManager v1.0.0
EzPenManager lets you load .EZD files created by EzCad and lets you edit the pens in a better way, as well as import and export the CSVs, CSV's are currently very specifically setup so don't stray from the layout this software exports :) Only expected to work with latest version of EzCad. Loading older .EZD files into newer EzCad and re-saving them will update the file.
There is no real file format verification here.