What does skthiddenmenu.apk do in Samsung s3? Can it be deleted?

If you need to delete the contents of my files on your mobile phone, the suggestions are: Standby-Applications-My Files-Select the desired folder-Open-Find the contents to be deleted-Long press the contents-Delete (some system folders do not support deletion). Note: files with built-in hard disk cannot be retrieved if they are accidentally deleted. It is recommended that you delete them carefully to avoid losing important data.