File System Metadata Attribute Keys Metadata attribute keys that describe the file system attributes for a file. TopicsConstantskMDItemDisplayNamekMDItemFSContentChangeDatekMDItemFSCreationDatekMDItemFSInvisiblekMDItemFSIsExtensionHiddenkMDItemFSLabelkMDItemFSNamekMDItemFSNodeCountkMDItemFSOwnerGroupIDkMDItemFSOwnerUserIDkMDItemFSSizekMDItemPath