@Override
	public String getFileExtension() {
		return filenameExtOverride != null && !filenameExtOverride.isEmpty()
				? filenameExtOverride
				: super.getFileExtension();
	}
GTreeNode that represents a file on a filesystem.
Ghidra/Features/Base/src/main/java/ghidra/plugins/fsbrowser/FSBFileNode.java