m_ziolo_86:
I made an IFC Translator and it is an xml file stored here:
user
/Library/Application Support/Graphisoft/IFC Translators 16.0.0 USA. Perhaps you have a permissions issue.
You should add a Signature to your Profile (click the Profile button near the top of this page) with your ArchiCAD version and operating system (see mine for an example) for more accurate help in this forum.
David