«Y» extensions

	yah
	YAH Files

	yar
	StarBoard Software Document

	ybc

	ybm

	ybrar
	yBook

	ybrtf
	yBook

	ybtxt
	yBook

	yenc
	StuffIt Archive

	yfs
	Yahoo! Formatted Skin

	ygn
	yGen.exe

	yka

	ymg
	Messenger Class

	ync
	StuffIt Archive

	ypl
	MP3 Playlist

	ypr
	Cool Music Card