File formats starting with a letter Y

File formats starting with a letter Y

.y Amiga Yabba Compressed Archive Format
.y01 Corel Paradox Secondary Index
.y02 Corel Paradox Secondary Index
.y03 Corel Paradox Secondary Index
.y04 Corel Paradox Secondary Index
.y05 Corel Paradox Secondary Index
.y06 Corel Paradox Secondary Index
.y07 Corel Paradox Secondary Index
.y08 Corel Paradox Secondary Index
.y09 Corel Paradox Secondary Index
.y3a Yu-Gi-Oh! Online Avatar Format
.y3d Yu-Gi-Oh! Online Card Format
.y3p Yu-Gi-Oh! Online Profile
.y3t Yu-Gi-Oh! Online Tag
.y4m YUV4MPEG2 Video Format
.y8pd Password Finder Yahoo! Mail / Yahoo! Messenger Exported Password
.yab Yabasic Source Code
.yadpcm Raw Yamaha 4-bit ADPCM Format
.yah HeartBeat
.yajl YAJL Script
.yak KayakFoundry 3D Design
.yal Arts & Letters Clipart Library Format
.yam Yahoo! Auctions Data Format
.yaml YAML Document
.yaodl Powerflip 3D Image Format
.yar StarBoard Document
.yast YaST
.yaws Yaws Source
.ybc SUSE Linux Enterprise Server Display Settings
.ybd YobiDrive Link Format
.ybhtm YBook HTML
.ybk Microsoft Encarta Yearbook Format
.ybm Ad-Aware 2007
.ybrar Ybook Ebook
.ybrtf Ybook Ebook
.ybtxt Ybook Ebook
.ychat Yahoo! Instant Messenger Chat Log Format
.ycm Yugioh Card Maker Format
.ycp SUSE Linux Enterprise Server Display Settings
.yct YahELite Chat Transcript
.ydc Konami Yu-Gi-Oh! Card Deck Format
.ydl Powerflip YAODL 3D Image Format
.ydr Yu-Gi-Oh! Power Of Chaos Replay Format
.ydt Konami Yu-Gi-Oh! Power Of Chaos Data Format
.yel Yellow Color Separation
.yenc YEnc Encoded Archive
.yfs YSFLIGHT Mission Format
.yg0 Corel Paradox Secondary Index
.yg1 Corel Paradox Secondary Index
.yg2 Corel Paradox Secondary Index
.yg3 Corel Paradox Secondary Index
.yg4 Corel Paradox Secondary Index
.ygf YWorks Binary Graph Format
.ygn YGen
.yif Mungyodance Game Data
.yka Yenka Model Format
.ym AY-3-8910 Audio Format
.ymap MindGenius Computer Aided Thinking Format
.ymbk Xilisoft Mobile Manager Phonebook
.ymg Yahoo! Messenger Format
.yml YAML Document
.yml2 YML Script Format
.ymp YaST Metapackage Format
.ync YEnc Encoded Format
.yog Outerra Recorded Video Format
.yookoo Yookoo Player Playlist Format
.yos HP Photosmart Essential Thumbnail Cache
.ypc WhyPic Picture
.ypf YahELite Configuration
.ypr BYOB Project Format
.yps Yahoo! Instant Messenger Format
.yrcbkm YRC Weblink Bookmarks Archive
.yrm Red Alert 2: Yuris Revenge Multiplayer Map
.yrp YGOPro Replay
.yse Yamaha Studio Manager Session
.ysm Yamaha Studio Manager
.ysp BYOB Sprite Format
.yss YcySoft Screen Saver Producer
.ytf Google Picasa Font Cache
.yti Google Picasa Plugin
.ytif Independence Instrument
.ytr I.R.I.S. OCR Data
.yuv YUV 16Bits Image Format
.yw3 YWriter 3 Project
.yw4 YWriter 4 Project
.yw5 YWriter 5 Project
.ywemanifest Yahoo! Widgets Manifest
.ywl YoWindow Data
.ywp YWriter 2 Project
.yz YAC Compressed Archive Format
.yz1 Yamazaki Zipper Archive
I cannot see the file extensions. What should I do?

File extensions are not normally displayed to users. To change this, go to Control Panel, select Appearance and Personalization and Folder Options. Next, select the View and find the option "Hide extensions for known file types". The option should be deselected (cleared) and confirmed with OK.