Alphabetically: Y
Extension File Description File Type
.y
Amiga Yabba Compressed File
Compressed
.yab
Yabasic Source Code
Developer
.yal
Arts & Letters Clipart Library
Vector Image
.yam
Yahoo! Auctions Data
Data
.yaodl
PowerFlip 3D Image File
3D Image
.ybk
Microsoft Encarta Yearbook File
Misc
.ychat
Yahoo! Messenger Chat Log
Data
.ycm
Yugioh Card Maker File
Game
.ydc
Yu-Gi-Oh! Card Deck File
Game
.ydl
PowerFlip YAODL 3D Image File
3D Image
.ydr
Yu-Gi-Oh! Power of Chaos Replay File
Game
.ydt
Yu-Gi-Oh! Power of Chaos Data File
Game
.yenc
yEnc File
Encoded
.yfs
YSFLIGHT Mission File
Game
.ym
Atari ST Audio File
Audio
.ymg
Yahoo! Messenger File
Misc
.yml
YAML Document
Text
.yml2
YML Script
Developer
.ymp
YaST Metapackage File
Developer
.ync
yEnc Encoded File
Encoded
.ypr
BYOB Project File
Developer
.yps
Yahoo! Messenger Data File
Misc
.yuv
YUV Encoded Image File
Raster Image
.yz
YAC Compressed File
Compressed