@Override
	public DataTypeManager openDataTypeArchive(String archiveName)
			throws IOException, DuplicateIdException {
		ResourceFile file = DataTypeArchiveUtility.findArchiveFile(archiveName);
		if (file != null) {
			return openArchive(file, false);
		}
		return null;
	}
Simple, non-ui implementation of the {@link DataTypeArchiveService} interface.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/datamgr/archive/DefaultDataTypeArchiveService.java