| Extension | File Type | File Description |
|---|---|---|
| Y | Image Files | Subsampled Raw YUV Image |
| Y | Archive Files | Amiga Yabba Compressed File |
| YAB | Programming Files | Yabasic Source Code |
| YAC | Miscellaneous Files | |
| YAL | Vector Graphics Files | Arts & Letters Clipart Library |
| YAM | Data Files | Yahoo! Auctions Data |
| YAML | Programming Files | Python configuration file |
| YAODL | 3D Graphics Files | PowerFlip 3D Image File |
| YBD | Miscellaneous Files | YobiDrive Link File |
| YBK | Miscellaneous Files | Microsoft Encarta Yearbook File |
| YBK | eBook Files | YanCEyWare eBook file |
| YCHAT | Data Files | Yahoo! Messenger Chat Log |
| YCM | Game Files | Yugioh Card Maker File |
| YDC | Game Files | Yu-Gi-Oh! Card Deck File |
| YDL | 3D Graphics Files | PowerFlip YAODL 3D Image File |
| YDR | Game Files | Yu-Gi-Oh! Power of Chaos Replay File |
| YDT | Game Files | Yu-Gi-Oh! Power of Chaos Data File |
| YENC | Encrypted Files | yEnc File |
| YFS | Game Files | YSFLIGHT Mission File |
| YM | Audio Files | Atari ST Audio File |
| YMG | Miscellaneous Files | Yahoo! Messenger File |
| YML | Programming Files | YAML Document |
| YML2 | Programming Files | YML Script |
| YMP | Programming Files | YaST Metapackage File |
| YNC | Encrypted Files | yEnc Encoded File |
| YOP | Video Files | Psygnosis YOP |
| YPR | Programming Files | BYOB Project File |
| YPS | Miscellaneous Files | Yahoo! Messenger Data File |
| YSP | Raster Image Files | BYOB Sprite File |
| YTF | Data Files | |
| YUV | Image Files | YUV Encoded Image File |
| YUV | Video Files | YUV Video File |
| YZ | Archive Files | YAC Compressed File |
| YZ1 | Archive Files | Yamazaki ZIPPER File |
Open File Support
PC Tuneup Maestro with open file support will enable your PC to open more than 6,000 file types, with just a couple clicks.