public: class M4::File * __thiscall M4::FileSystem::OpenFile(char const *, bool, unsigned int)

Mangled name

?OpenFile@FileSystem@M4@@QAEPAVFile@2@PBD_NI@Z

Exported by

size	filename	version
6184960	Spark_Core.dll

Imported by

size	filename
909312	NS2.exe