Hi Sean, I am introducing third party project oniguruma as submodule into edk2, and want to skip CharEncodingCheck for certain files in oniguruma. I tried to add changes like below, but CI build failed. "CharEncodingCheck": { "IgnoreFiles": [[(MdeModulePkg/Universal/RegularExpressionDxe/oniguruma/test/testc.c),(MdeModulePkg/Universal/RegularExpressionDxe/oniguruma/windows/testc.c)] } So what should I do in CharEncodingCheck_plug_in.yaml? Or how do you handle this kind of case like openssl? I see you add this to edk2 and hope you could resolve my query. Thanks in advance. Best Regards, Shenglei