I?m uninstall Itunes and restar my pc, but, when run CCleaner, don?n found any about *.itl, in this case, i reintall old version of itunes, then itunes show me the files *.itl and tell me "this files is a more recente version of itunes library", I think that cclener can be deleted this files when the software is unisntalled.
thx for your attention
PD: I delete de files manually whith Unlocker