A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Num Sym
.??_ Files ending in "_" are often compressed install files of the same name (e.g., .EX_ expands to .EXE, .DL_ expands to .DLL, etc.) .Y Amiga Yabba Compressed Archive File Yaac Grammar File Desktop Color Separation Specification Yellow Layer (usually an EPS file) .Y01 Paradox Secondary Index (can be 01 to 09) .Y2 Plugh! (TADS interactive fiction development GUI) .Y64 Commandos 2 Game Mission .YAB YaBasic Source .YAL Arts & Letters Clipart .YBK Encarta Yearbook .YDK Yusuf Data Recovery (unverified) .YEL Adobe Yellow Color Separation (also see .BLA, .CYA, .MAG) .YENC yEnc Encoded File (usually on usenet) .YGO Paradox Database-related File .YLT TheWord & Bible Companion Young's Literal Translation Bible .YMACRO YaHoE File [crack site] .YMAP Ygnius Computer Aided Thinking File .YMG Yahoo! Messenger File .YMP MicroSim PCBoard Mapping File (matching PADS package names to MicroSim package and footprint names) .YNC yEnc Encoded File (usually on usenet) .YPK MicroSim PCBoard Mapping File (matching PADS decal names to MicroSim footprint names) .YPL Yahoo! Player Playlist (Yahoo! Player is no longer available for download) .YPS Yahoo! Messenger File .YPT Cryptic File (File Encryption/Decryption) .YSP Bitmap Graphic (unconfirmed) .YUV Color Space Pixel Format (CCIR 601 4:1:1) .YZ Yac Compressed Archive File