Lista de extensións de ficheiros

Algúns formatos ou extensións de ficheiros son os que están listados a continuación:

 0–9 
 000-999 Usado en antigas versións para separar ficheiros ordenados pola data de creación 
 12M Lotus 123 97 Smartmaster file 
 123 Lotus 123 97 file 
 2GR and 3GR VGA Graphics driver/configuration files under Windows 
 386 arquivo usado en plataformas 80386 ou procesadores máis recentes.
 3DM formato do programa Rhinoceros3d. 
 3DS formato do programa 3dstudio para as antigas versións en MS-DOS.
 669 Composer 669, Unis Composer music mod file
 7z 7-Zip file

 A 
 ABK Corel Draw AutoBackup 
 ACL Acelerador de teclado do Corel Draw 6
 ACM Windows Audio Compression Manager
 ACP Asistente de previsualización do Microsoft Office
 ACT Microsoft Office Assistant Actor (ficheiro) 
 ACV Drivers de son do OS/2 
 AD After Dark (screensaver)
 ADB Appointment Database (usada polo organizador HP 100LX)
 ADD Drivers utilizados no arranque do OS/2
 ADM After Dark MultiModule (screensaver)
 ADP Usado polo FaxWorks para configurar a interacción por fax ou módem 
 ADR After Dark Randomizer (screensaver)
 AFM Adobe Font Metrics 
 AF2 ABC Flowchart (ficheiro)
 AF3 ABC Flowchart (ficheiro)
 AI Adobe Illustrator (formato vectorial de deseño)
 AIFF Apple Mac AIFF (son)
 ALB JASC Image Commander
 ALL Arts & Letters Library 
 AMS Velvert Studio music module (MOD)
 ANC Canon Computer Pattern Maker (paleta de cores)
 ANI Animated Cursor (cursor animado)
 ANS ANSI (texto sen formato)
 API Application Program Interface (tipo de ficheiro usado polo Adobe Acrobat)
 APR Lotus Approach 97 
 APS Microsoft Visual C++
 ARC LH ARC versuñib abtiga de ficheiro comprimido
 ARJ Formato de ficheiro comprimido ARJ, deseñado por Robert Jung
 ART Xara Studio (deseño)
 ART Canon Crayola
 ASA Microsoft Visual InterDev 
 ASC Texto ASCII
 ASD WinWord AutoSave 
 ASM Assembler
 ASP Active Server Page (linguaxe web) 
 AST "Asistente" do Claris Works
 ATT AT&T Group 4 (mapa de bits)
 AVI Microsoft Video for Windows movie (ficheiro de vídeo)
 AWD FaxView

 B 
 BAK Backup (copia de seguranza)
 BAS BASIC
 BAT Batch
 BFC Documento "Briefcase" do Windows 95 "Briefcase"
 BG "Backgammon" for Windows game 
 BI Ficheiro en código binario
 BIG Electronic Arts Graphics File
 BIF GroupWise initialization file 
 BIN Binary file 
 BK Similar a .bak
 BK$ Similar a .bak
 BKS "Bookshelf", formato de libro electrónico deseñado pola IBM
 BLEND Exensión do Blender3D.
 BMK Ficheiro de "bookmark"
 BMP Mapa de bits para o Windows ou o OS/2
 BM1 Apogee BioMenace
 BRX Ficheiro para navegar ("browsing") e indexar opcións multimedia 
 BSP Quake map 
 BS1 Apogee Blake Stone
 BTM "Batch file" usado polo Norton Utilities 
 B4 Ficheiro para Helix Nuts e Bolts

 C 
 C Código escrito en linguaxe de programación C 
 CAB "Cabinet"Ficheiro de compresión de ficheiros utilzado pola Microsoft para a distribución de software
 CAL Mapa de bits comprimido CALS
 CAL Calendario
 CAS "Comma-delimited ASCII"
 CAT IntelliCharge categorization file used by Quicken 
 CB Ficheiro para "clean boot" (limpar arranque) de Microsoft
 CCB Configuración animada de botón en Visual Basic
 CCF Ficheiro de visor multimedia usado en OS/2 
 CCH "Corel Chart"
 CCM Lotus CC:Mail "box" (por exemplo, INBOX.CCM) 
 CDA CD Audio Track 
 CDF Microsoft Channel Definition Format
 CDI Phillips Compact Disk Interactive
 CDR Corel Draw Drawing 
 CDT Corel Draw Template 
 CDX Corel Draw Compressed Drawing 
 CEL CIMFast Event Language
 CFB Comptons Multimedia
 CFG Ficheiro de configuración/preferencias dalgún programa
 CGI Common Gateway Interface
 CGM Computer Graphics Metafile 
 CH ficheiro de configuración para OS/2
 CHK Formato co que se gardan framentos doutros ficheiros que recuperou a utilidade ScanDisk do Windows ou ben o seu desfragmentador de disco
 CHP Ventura Publisher "chapter" (capítulo)
 CIL Paquete de descarga de clips multimedia para Office
 CIN OS/2 change control file that tracks changes to an INI file 
 CK1 Ficheiro de datos para iD/Apogee Commander Keen (sucesivos ficheiros terían extensións como .CK2, CK3 etc.)
 CLASS Java class 
 CLP Windows Clipboard
 CLS Visual Basic Class Module 
 CMD Ficheiro de comandos para Windows NT (similar ao ficheiro .BAT de MS-DOS); ficheiro de comandos para DOS CP/MM ficheiro de programa para dBase-II.
 CMF Corel Metafile 
 CMP JPEG Bitmap 
 CMV Animación do Corel Move
 CMX Formato de imaxe do Corel Presentation Exchange
 CNF Formato para expresar ficheiro de configuración en diferentes programas e contornos
 CNM Configuracións do Windows
 CNQ Compuworks Design Shop
 CNT "Content"
 COB Obxecto trueSpace2
 COD Compilador para C
 COM Ficheiro de comandos
 CPD Fax Cover document 
 CPE Fax Cover document 
 CPI "Code Page Information" (en MS-DOS)
 CPL Extensión do Panel de Control
 CPL Corel colour palette 
 CPP Código en C++
 CPR Corel Presents Presentation 
 CPT Corel Photo-Paint image 
 CPX Corel Presentation Exchange Compressed
 CRD Cardfile file 
 CRP Corel Presents Run-Time Presentation 
 CRT Certificate file 
 CSC Corel Script 
 CSP PC Emcee On-Screen image
 CSS Cascading Style Sheets
 CSV "Comma-separated values" 
 CT Scitex CT Bitmap 
 CTL Formato usado en xeral para introducir información de control 
 CUE Microsoft Cue Cards data 
 CUR Windows Cursor 
 CUT Dr Halo bitmap 
 CV Corel Versions archive 
 CV Pntalla de información para Microsoft CodeView
 CWK Ficheiro de datos Claris Works 
 CWS Sobreplanta Claris Works
 CXX Ficheiro de recursos de código C++

 D 
 DAT Datos
 DAT Datos de WordPerfect
 DBF Aston-Tate dBASE (base de datos)
 DBX Imaxe DataBeam
 DCR Ficheiro de Shockwave
 DCS Desktop Color Separation
 DCX Imaxe Fax (baseada no formato PCX)
 DDF BTRIEVE (base de datos)
 DEF Ficheiro de datos para SmartWare II
 DEF Definicións da linguaxe de programación C++
 DER Ficheiro de certificacións
 DIB "Device-Independent Bitmap" (recurso independente de mapa de bits)
 DIC Dicionario
 DIF Data Interchange Format
 DIR Macromedia Director
 DIZ Descrición
 DLG Script de diálogo para a linguaxe de programación C++
 DLL Dynamic-Link Library 
 DMF X-Trakker music module (MOD)
 DOC Documento para FrameMaker ou FrameBuilder, WordStar, Corel WordPerfect ou Microsoft Word
 DOT Sobreplanta para documentos de Microsoft Word
 DPP DrawPlus Drawing
 DPR Borland Delphi
 DRV Driver 
 DRW Micrografx Designer/Draw 
 DSM Módulo musical para Dynamic Studio (MOD)
 DSP Proxecto para Microsoft Developer Studio
 DSQ Corel QUERY
 DSW "Microsoft Developer Studio Workspace" (ambiente de traballo para Microsoft Developer Studio)
 DWG AutoCAD drawing eXchange
 DWT Sobreplanta para o AutCAD
 DXF Formato de intercambio para AutoDesk Drawing

 E 
 EMF "Enhanced Windows Metafile"
 EMZ "Windows Compressed Enhanced Metafile"
 ENC "Encore file"
 EPS Ficheiro de imaxe postcript encasulada
 ER1 Ficheiro de ERWin
 ERX Ficheiro de ERWin
 EVY Documennto de Envoy
 EWL Documento da Microsoft Encarta
 EXE Ficheiro executábel

 F 
 F FORTRAN file 
 F77 FORTRAN file 
 F90 FORTRAN file 
 FAR Farandole Composer
 FAV Barra de navegación do Microsoft Outlook
 FAX Formato de imaxe Fax
 FH3 Aldus Freehand 3
 FIF Imaxe fractal 
 FITS Imaxe de cámara CCD
 FLA Documento de Flash 
 FLC Animación para AutoDesk FLIC
 FLI Animación para AutoDesk FLIC
 FLT Filtor (filter)
 FLV Achivo de Video de Flash (FLashVideo)
 FON fonte bitmap
 FOR FORTRAN
 FOT Font-related
 FP FileMaker Pro
 FPX FlashPix
 FRM Form(ulario)
 FRM Formulario para Visual Basic
 FRM WordPerfect Merge
 FRX Formulario para Visual Basic

 G 
 GAL Galería fotográfica de Corel 
 GED Graphic Environment Document (imaxe) 
 GEM GEM metafile 
 GEN Ventura-Generated text file 
 GFC Patton&Patton Flowcharting 4 flowchart (imaxe)
 GFI Genigraphics Graphics Link
 GFX Genigraphics Graphics Link
 GID Ficheiro de indexación global para Windows 95
 GIF CompuServe bitmap (formato gráfico comprimido)
 GIM Genigraphics Graphics
 GIX Genigraphics Graphics
 GNA Genigraphics Graphics
 GNX Genigraphics Graphics
 GRA Microsoft Graph 
 GRD Grid file 
 GRP Program Manager Group 
 GTK Módulo musical (antigo) para Graoumftracker
 GT2 Módulo musical (novo) para Graoumftracker 
 GWX Genigraphics Graphics Link
 GWZ Genigraphics Graphics Link
 GZ Unix Gzip (ficheiro comprimido)

 H 
 H Cabeceira de programa na linguaxe de programación C
 HED HighEdit
 HEX Macintosh BinHex 2.0
 HGL HP Graphics Language
 HLP Ficheiro de axuda (help)
 HOG Lucas Arts Dark Forces WAD file 
 HPJ Visual Basic Help Project 
 HPP C++ program header 
 HQX Macintosh BinHex 4.0 file 
 HST Historial
 HT HyperTerminal 
 HTM Hypertext Markup Language
 HTML Hypertext Markup Language
 HTX Sobreplanta estendida para HTML

 I 
 ICA Citrix file 
 ICB Targa bitmap 
 ICM Image Color Matching profile file 
 ICO Windows Icon 
 IDD MIDI Instrument Definition 
 IDQ Internet Data Query file 
 IFF Amiga ILBM 
 IGF Inset Systems metafile 
 IIF QuickBooks for Windows interchange file 
 IMA WinImage file 
 IMG GEM image 
 INC Assembler language or Active Server include file 
 INF Information file 
 INI Initialization file 
 INP Oracle source code for form, versión 3.0 and earlier 
 INS InstallShield install script 
 INS X-Internet sign-up file 
 ISO Lists the files on a CD-ROM; based on the ISO 9660 CD-ROM file system standard 
 ISP X-Internet sign-up file 
 ISU InstallShield uninstall script 
 IT Impulse Tracker music module (MOD) file 
 IW Idlewild screensaver

 J 
 JAR Java ARchive file (ficheiro comprimido) 
 JAVA Recursos de código para linguaxe Java 
 JBF Paint Shop Pro
 JFF formato de imaxe (mapa de bits)
 JIF formato de imaxe (mapa de bits)
 JPEG imaxe comprimida
 JPG imaxe comprimida
 JS Recursos de código para linguaxe Java 
 JTF mapa de bits

 K 
 KAR Arquivos para Karaoke
 KDC Kodak Photo-Enhancer 
 KFX KoFax Group 4

 L 
 LBM Deluxe Paint Bitmap 
 LDB Microsoft Access Lock
 LEG Documento (leg)al
 LHA Extensión alternativa para os ficheiros LZH
 LIB Library 
 LOG Ficheiro lóxico (log)
 LRC Extensão para letras de música en sincronía co ficheiro MP3 da mesma música (usado en karaoke e reprodutores MP3)
 LRC Intel Video Phone
 LST Ficheiro de listas
 LWO Lightwave Object
 LWP Lotus Wordpro 96/97
 LZH Ficheiro comprimido LH ARC

 M 
 M3D Animación para Corel Motion 3D
 MAC MacPaint (imaxe)
 MAD Microsoft Access
 MAF Microsoft Access Form 
 MAK Proxecto para Visual Basic ou proxecto para MS Visual C++
 MAM Microsoft Access Macro 
 MAP Map(a)
 MAQ Microsoft Access Query 
 MAR Microsoft Access Report (informe)
 MAS Lotus Freelance Graphics Smartmaster
 MAT Microsoft Access Table
 MAX Paperport file 
 MAX Extensión nativa do 3D Studio Max.
 MAZ Hover maze data 
 MCC Chamadas do Dialer10
 MCS MathCAD (imaxe)
 MCW Microsoft Word para Macintosh
 MDA Microsoft Access add-in 
 MDB Base de datos para Microsoft Access
 MDE Microsoft Access MDE
 MDL Digital Tracker music module (MOD)
 MDN Microsoft Access (sobreplanta)
 MDW Microsoft Access Workgroup 
 MDZ Microsoft Access (sobreplanta)
 MER Formato de intercambio para diferentes programas(como Filemaker ou Excel) 
 MET Presentation Manager (met)afile
 MHTML (.mht, .mhtml) - Ficheiro HTML que almacena todos os datos dunha páxina web (texto, imaxes e multimedia) nun só documento
 MI Misceláneo (miscellaneous)
 MIC Microsoft Image Composer
 MID Formato musical MIDI (equivalente vectorial para os ficheiros de son, posto que só representa magnitudes musicais)
 MKA Son comprimido no formato Matroska
 MKV Vídeo comprimido no formato Matroska
 MMF Microsoft Mail File 
 MMM Microsoft Multimedia Movie
 MMM fonte PostScript Type 1 (Multiple Master)
 MOD Módulo ou modificador (para diferentes aplicacións)
 MOV Película (movie) para QuickTime
 MPEG ou MPG Moving Picture Experts Group
 MPP Microsoft Project
 MPP CAD drawing file format 
 MP3 MPEG Audio Layer 3 (AC3)
 MSG Microsoft Mail
 MSN Microsoft Network
 MSP Microsoft Paint (mapa de bits)
 MTM MultiTracker Music Module
 MUS Music 
 MVB Microsoft Multimedia Viewer
 MWP Lotus Wordpro 97 Smartmaster

 N 
 NAP NAP Metafile 
 NCB Microsoft Developer Studio
 NSF Base de datos Lotus Notes
 NST Módulo musical para Noise Tracker
 NTF Sobreplanta para bases de datos Lotus Notes
 NRG Imaxe do programa de gravación Nero

 O 
 OBD Sobreplanta para Microsoft Office Binder
 OBD Microsoft Office Binder 
 OBJ Obxecto (object)
 OBZ Microsoft Office Binder Wizard 
 OCX Microsoft Object Linking and Embedding Custom Control
 ODF OpenDocument Format
 OFN Microsoft Office FileNew
 OFT Microsoft Outlook (sobreplanta)
 OGG Formato de compresión de son, aberto e libre
 OKT Oktalyzer
 OLB OLE Object Library 
 OLE Obxecto OLE
 OPT Microsoft Developer Studio
 ORG Lotus Organiser
 OR2 Lotus Organiser 2
 OR3 Lotus Organiser 97
 OTF fonte OpenType

 P 
 P10 Tektronix Plot 10
 PAB Caderno de direccións de Microsoft (Personal Address Book )
 PAL PAleta de cores
 PAT Modelo (pattern) para Corel Draw
 PBK Microsoft Phonebook 
 PBM Mapa de bits portátil (Portable Bitmap )
 PCD Kodak Photo-CD
 PCS PICS animation 
 PCT Macintosh PICT drawing 
 PCX ZSoft PC Paintbrush (formato de imaxe)
 PDF Adobe Acrobat Portable Document Format
 PDF Netware Printer Definition File 
 PDF Package Definition File from Microsoft Systems Management Server 
 PDQ Patton&Patton Flowcharting PDQ Lite file 
 PFA fonte PostScript Tipo 1 (ASCII) 
 PFB fonte PostScript Tipo 1 (binario) 
 PFC PF Component 
 PFM fonte PostScript Tipo 1 (Printer Font Metrics)
 PGL HP Plotter drawing 
 PGM Portable Graymap (bitmap) 
 PIC PC Paint bitmap 
 PIC Lotus picture 
 PIC Macintosh PICT drawing 
 PIF Program Information File
 PIX Inset Systems bitmap
 PKG Microsoft Developer Studio (similar a DLL)
 PL Ficheiro para a linguaxe de programación Perl
 PLT HPGL Plotter
 PLT AutoCAD Plot
 PM5 Pagemaker 5.0
 PM6 Pagemaker 6.0
 P65 Pagemaker 6.5
 PNG Portable Network Graphics bitmap (imaxe vectorial)
 PNG Catálogo para Paint Shop Pro Browser
 PNT MacPaint graphic
 POT Microsoft PowerPoint Template 
 PP4 Picture Publisher 4
 PPA Microsoft PowerPoint Add-in 
 PPM Portable Pixelmap bitmap
 PPP PagePlus Publication 
 PPS Microsoft PowerPoint
 PPT Microsoft PowerPoint
 PRE Lotus Freelance presentation 
 PRF Windows system file 
 PRN Print Table
 PRS Presentación de Harvard Graphics para Windows
 PRZ Lotus Freelance Graphics 97
 PS Postscript Interpreted drawing 
 PSD Adobe Photoshop bitmap 
 PST Microsoft Outlook Personal Folder
 PTM Módulo musical de Polytracker
 PUB Ventura Publisher
 PUB Microsoft Publisher
 PWD Microsoft Pocket Word
 PWZ Microsoft PowerPoint Wizard 
 PXL Microsoft Pocket Excel
 PY Python
 PYW Python File Without Console

 Q 
 QAD PF QuickArt Document 
 QBW QuickBooks para Windows
 QDT Quick Books 
 QLB Quick Library 
 QRY Microsoft Query 
 QT QuickTime Movie 
 QTM QuickTime Movie 
 QXD Quark XPress

 R 
 R Pegasus Mail resource file 
 RA Real Audio sound 
 RAM Real Audio sound 
 RAS Sun Raster Images bitmap 
 RAW Raw File Format (bitmap) 
 RC Microsoft Visual C++ Resource Script 
 REC Recorder macro 
 REG Registration file 
 RES Microsoft Visual C++ Resource 
 RFT RFT-DCA 
 RLE Run-Length Encoded bitmap 
 RM Real Audio video
 RMI MIDI music 
 ROV Rescue Rover
 RPT Microsoft Visual Basic Crystal Reports
 RTF Formato de Texto Enriquecido (Rich Text Format)
 RTM Módulo musical Real Tracker

 S 
 SAM Ami Professional
 SAV Saved game
 SCC Microsoft Source Safe
 SCD Matrix/Imapro SCODL
 SCD Microsoft Schedule+ 7 
 SCH Microsoft Schedule+ 1 
 SCN escena (scene) para trueSpace2 
 SCP Dial-Up Networking Script 
 SCR Windows screensaver 
 SCR Fax image 
 SCT Scitex CT bitmap 
 SC2 Microsoft Schedule+ 7 
 SDL SmartDraw library 
 SDR SmartDraw drawing 
 SDT SmartDraw template 
 SEA Self-expanding archive
 SEP Tagged Image File Format (TIFF) bitmap 
 SHB Corel Show
 SHB Document shortcut
 SHG Hotspot bitmap 
 SHS Shell scrap file 
 SHW Corel Show presentation 
 SKP extensión de ficheiro 3D do SketchUp.
 SIT Stuffit archive of Mac files 
 SLK Symbolic Link (SYLK) spreadsheet 
 SND NeXT sound 
 SND Mac Sound Resource 
 SPP PhotoPlus Pictures
 SQC Structured Query Language (SQR) common code file 
 SQR Structured Query Language (SQR) program file 
 STM Scream Tracker music module (MOD) file 
 STY Ventura Publisher style sheet 
 SVG Scalable Vector Graphics
 SVX Amiga 8SVX sound 
 SWF Shockwave Flash Object
 SYS System file 
 S3M Scream Tracker 3 music module (MOD) file

 T 
 TAR Tape Archive 
 TAZ Unix Gzip/Tape Archive 
 TEX Texture file 
 TGA Targa bitmap 
 TGZ Unix Gzip/Tape Archive 
 THEME Windows 95 Desktop Theme 
 THN Graphics Workshop for Windows thumbnail 
 TIF ou TIFF Tag Image File Format (TIFF) bitmap 
 TIG Tiger file, used by US government to distribute maps 
 TLB OLE Type Library 
 TMP Windows temporary file 
 TRM Terminal file 
 TRN MKS Source Integrity project usage log 
 TTF fonte TrueType
 TWF TabWorks file 
 TWW Tagwrite Template 
 TX8 MS-DOS Text 
 TXT Text 
 T2T Sonata CAD modelling software file

 U 
 UDF Windows NT Uniqueness Database File 
 ULT Ultratracker music module (MOD) file 
 URL Internet shortcut 
 USE MKS Source Integrity file

 V 
 VBP Visual Basic Project 
 VBW Microsoft Visual Basic workspace 
 VBX Visual Basic custom control 
 VCF Vevi Configuration File; defines objects for use with Sense8's WorldToolKit 
 VDA Targa bitmap 
 VI Virtual Instrument file from National Instruments LABView product 
 VLB Corel Ventura Library 
 VOC Creative Labs Sound Blaster sound 
 VP Ventura Publisher publication 
 VSD Visio drawing (flow chart or schematic) 
 VST Targa bitmap 
 VSW Visio Workspace file 
 VXD Microsoft Windows virtual device driver

 W 
 WAD Large file for Doom game containing video, player level, and other information 
 WAV Windows Waveform sound 
 WB1 QuattroPro for Windows spreadsheet 
 WB2 QuattroPro for Windows spreadsheet 
 WBK Microsoft Word Backup 
 WBL Argo WebLoad II upload file 
 WCM WordPerfect Macro 
 WDB Microsoft Works database 
 WEB CorelXara Web document 
 WGP Wild Board Games data file 
 WID Ventura width table 
 WIL WinImage file 
 WIZ Microsoft Word Wizard 
 WK1 Lotus 123 versions 1 & 2 spreadsheet 
 WK3 Lotus 123 version 3 spreadsheet 
 WK4 Lotus 123 version 4 spreadsheet 
 WKS Lotus 123 Worksheet spreadsheet 
 WKS Microsoft Works document 
 WLF Argo WebLoad I upload file 
 WLL Microsoft Word Add-In 
 WMF Windows Metafile 
 WOW Grave Composer music module (MOD) file 
 WP WordPerfect document 
 WPW Novel PerfectWorks document 
 WP4 WordPerfect 4 document 
 WP5 WordPerfect 5 document 
 WP6 WordPerfect 6 document 
 WPD WordPerfect Demo 
 WPD WordPerfect Document 
 WPG WordPerfect Graphic 
 WPS Microsoft Works document 
 WPT WordPerfect Template
 WQ1 QuattroPro/DOS spreadsheet 
 WQ2 QuattroPro/DOS version 5 spreadsheet 
 WRI Write document 
 WRL Virtual Reality model 
 WS1 WordStar for Windows 1 document 
 WS2 WordStar for Windows 2 document 
 WS3 WordStar for Windows 3 document 
 WS4 WordStar for Windows 4 document 
 WS5 WordStar for Windows 5 document 
 WS6 WordStar for Windows 6 document 
 WS7 WordStar for Windows 7 document 
 WSD WordStar 2000 document 
 WVL Wavelet Compressed Bitmap

 X 
 XAR Corel Xara drawing 
 XLA Microsoft Excel add-in 
 XLB Microsoft Excel toolbar 
 XLC Microsoft Excel chart 
 XLD Microsoft Excel dialogue 
 XLK Microsoft Excel backup 
 XLM Microsoft Excel macro 
 XLS Microsoft Excel worksheet 
 XLT Microsoft Excel template 
 XLV Microsoft Excel VBA module 
 XLW Microsoft Excel workbook / workspace 
 XM FastTracker 2, Digital Tracker music module (MOD) file 
 XR1 Epic MegaGames Xargon data file 
 XTP XTree data file 
 XY3 XYWrite III document 
 XY4 XYWrite IV document 
 XYP XYWrite III Plus document 
 XYW XYWrite for Windows 4.0 document

 Y 
 YAL Arts & Letters clipart library 
 YBK Microsoft Encarta Yearbook

 Z 
 Z Unix Gzip 
 ZIP Zip file 
 ZOO An early compressed file format

Categoría:Listas de informática
Categoría:Formatos de ficheiro
Categoría:Sistemas de ficheiros