521 Useful File Extension

No.

Extension

Description

01

.$$$ 

Temporary file

02

.2gr 

A File That allows Windows to Display Text and Graphics in Standard Mode on a 286 or 386 Computer

03

.386

Swap File Enables Computer Running in Enhanced mode to Use Windows with Virtual Memory

04

.3gr

A File That allows Windows to Display Text and Graphics in Enhanced Mode on a 386, 486, or Pentium Computer

05

.906

Calcomp Plotter

06

.a3w

Macromedia Authorware Windows 3.5

07

.abk

Autobackup, Corel Draw

08

.abr

Brush | Adobe Photoshop

09

.acl

Keyboard Accelerator, Corel Draw 6

10

.acm

Windows System Directory File

11

.acv

Drivers For Compressing or Decompressing Audio Files, OS/2

12

.ad

After Dark

13

.adb

1.Appointment DataBase, HP 100LX.

2.Body File Type, Ada Language

14

.add

Adapter Driver - OS/2

15

.adm

AfterDark MultiModule

16

.adr

AfterDark Randomizer. AfterDark is a Screensaver Program That Can be Set to Randomly Display a Variety of Screensaver Patterns one After Another

17

.ads

Specification File Type, Ada Language

18

.afm

Adobe Font Metrics - Type 1 Font Metrics

19

.ag4

Access G4

20

.ai

Adobe Illustrator

21 .aif

Audio Interchange File Format or AIFF. A Format Developed by Apple Computer For Storing High-Quality Sampled Audio and Musical Instrument Information. It can be Played on PC and Mac

22

.aiff

Audio Interchange File Format. An Uncompressed Sound Format Developed by Apple Computer for Storing High-Quality Sampled Audio and Musical Instrument Information. It can be Played on PC and Mac, Using QuickTime or Sound Player

23

.all

Arts and Letters Library

24

.ani

Animated Cursor

25

.ans

ANSI Text

26

.api

Application Program Interface. An Interface Between the Operating System and Application Programs

27

.app

Macromedia Authorware Package

28

.arc

ARC Compressed

29

.arj

A PC Compressed Format Found on European Sites, Which can be Decoded With unArjMac, DeArj, and SITEX10.EXE (win).

30

.art

An art File, in Some Draw or Paint Applications

31

.asc

ASCII Text File

32

.asf

Active Streaming File -Hot Metal Pro

33

.asm

Assembly Source Code

34

.asp

Active Server Page - Microsoft

35

.ast

Assistant File - Claris Works. Assistants Guide The User Through a Task by Asking a Series of Questions and Then Use the Answers to Perform a Task. Assistants in Claris Works can be used to create Such Useful Items as Calendars, Newsletters, Stationery, Labels, and Address Lists, to Make Footnotes Within a File etc.

36

.att

AT & T

37

.au

A Sound File Format Used on Sun Microsystems or Other UNIX Computers

38

.avi

AVI Movie Format

39

.avs

Intel Video Capture Format

40

.b64

Base 64, The Encoding Format Used by the Multipurpose Internet Mail Extension

41

.bak

Backup Copy in DOS or OS/2

42

.bas

BASIC Program File

43

.bat

Batch

44

.bfc

Briefcase Document - Windows 95

45

.bg

Backgammon Game

46

.bi

Binary File

47

.bin

Driver or A MacBinary II Encoded File. This File Type, Downloaded as Macbinary or Binary, can be Decompressed with Stuffit Expander

48

.bk

Backup Copy

49

.bk$

Backup File

50

.blt

Wordperfect For DOS

51

.bmp

Bitmap

52

.bnk

Sim City Game File

53

.brx

Browse Index.Found on Multimedia CD-ROMs

54

.btm

Batch File - Norton Utilites

55

.cc

Program File

56

.cab

Microsoft Compressed Format

57

.cal

Calendar or CALS

58

.cap

Caption

59

.cbt

Computer-Based Training; a Tutorial File

60

.cch

Corel Chart

61

.ccm

Lotus cc:Mail

62

.cda

CD Audio Track

63

.cdr

CorelDraw

64

.cdt

Corel Draw Template

65

.cdx

Corel Draw Compressed File (File Extension)

66

.cdx

Visual FoxPro Database Index

67

.cfb

Compton's Multimedia Encyclopedia

68

.cfg

Configuration

69

.cfl

Corel Flow

70

.cgi

Common Gateway Interface. A File That Makes it Possible for HTTP Servers to Interface With Computer Programs to Provide Interactive Functions Like Fill-out Forms

71

.cgm

CGM Graphics

72

.chk

Checkdisk - DOS Command

73

.chp

Chapter - Ventura

74

.cif

Chapter Information - Venture

75

.cim

Sim City File

76

.cit

Intergraph Scanned Image

77

.clp

Clipboard File

78

.cmd

Command file - OS/2

79

.cmf

Corel MetaFile

80

.cmf

SoundBlaster File

81

.cmp

LEAD Technologies Graphics

82

.cmv

Corel Move Animation

83

.cnf

Configuration File

84

.cnq

Compuworks Desing Shop

85

.cob

COBOL Source Code

86

.com

Command File - Small Version of .EXE

87

cpe

Fax Cover document

88

.cpi

Code Page - DOS

89

.cpl

Control Panel - Windows

90

.cpp

C++ Program File

91

.cpr

Knowledge Access graphics

92

.cpt

Compact Pro

93

.cpx

Corel Presentation Exchange Compressed File

94

.crd

Windows Cardfile

95

.csc

Corel Script

96

.css

Cascading Style Sheet

97

.csv

Comma Delimited

98

.ctl

Control File

99

.cty

City File - SimCity

100

.cur

Windows Cursor Image

101

.cut

Dr. Halo Graphics

102

.cv

Microsoft CodeView

103

.cwk

Claris Works

104

.cws

Claris Works Template

105

.dat

Data

106

.db

Table - Paradox

107

.dbc

Visual Foxpro Database

108

.dbf

Database File - dBASE

109

.dbt

Database Text - dBASE

110

.dbx

DATABEAM Graphics

111

.dca

IBM Text

112

.dcs

Color Separation - EPS

113

.dct

Dictionary

114

.dd

Disk Doubler

115

.ddi

Disk Doubler Image

116

.def

Definition - C++

117

.der

Certificate

118

.dev

Device Driver File

119

.dg

Autotrol Graphics

120

.dgn

Intergraph Graphics

121

.dib

DIB Graphics - Windows

122

.dic

Dictionary

123

.dif

Data Interchange Format Spreadsheet

124

.dll

Dynamic Link Library

125

.doc

Document File

126

.dot

Document Template - Microsoft Word

127

.dox

MultiMate Document

128

.dpi

Dots Per Inch - Graphics

129

.dpr

Delphi Project File

130

.drv

Driver

131

.drw

Desinger Graphics

132

.ds4

Desinger Graphics, Version 4

133

.dsf

Desinger Graphics, Version 6

134

.dwg

AutoCAD Vector Format

135

.dwg

Drawing - AutoCAD

136

.dx

Document Imaging

137

.dxf

AutoCAD Vector Format

138

.ed5

EDMICS Graphics

139

.emf

Enhanced Windows Metafile

140

.eml

Electronic Mail

141

enc

Encoded

142

.eps

Encapsulated PostScript Format

143

.esi

Esri Plot File

144

.exe

Executable File - Machine code

145

.fax

Fax

146

.fdx

Force Index

147

.fh3

Aldus Freehand 3

148

.flc

AutoDesk Animation

149

.fld

Thumbnail Folder - Hijaak

150

.fli

AutoDesk Animation

151

.flr

Live3D

152

.flt

Filter - Graphics Conversion

153

.fm

Framemaker

154

.fm3

Format for 1-2-3 Version 3

155

.fmt

Format - dBASE

156

.fnt

Font

157

.fog

Fontographer font

158

.fon

Bitmapped Font - Windows

159

.for

FORTRAN

160

.fot

Windows TrueType Font

161

.fox

FoxBase

162

.fp

Claris FileMaker Pro

163

.fp1

Flying Pigs

164

.fp3

Filemaker Pro 3

165

.fpx

FlashPix Bitmap

166

.frm

Form Desing - Visual Basic

167

.frs

WordPerfect Graphics Driver

168

.g4

GTX RasterCAD

169

.gca

GOCA Graphics

170

.ged

Arts & Letters Graphics

171

.gem

GEM Graphics

172

.geo

VideoScope

173

.gif

Graphics Interchange Format

174

.gly

Glossary

175

.gp3

CCITT Compressed Group 3 TIFF File

176

.gp4

Group 4 - CALS,ITU.CCITT Compressed Group 4 TIFF File

177

.gra

Microsoft Graph

178

.grf

Graph

179

.grp

Group

180

.gx1

Show Partner Graphics

181

.gx2

Show Partner Graphics

182

.gz

GNU Gzip Compressed File - Unix

183

.h

Hierarchical Data File

184

.hdf

Hierarchical Data File

185

.hed

HighEdit document

186

.hel

Microsoft Hellbender Game File

187

.hgl

HP Graphics Language

188

.hlP

Help

189

.hpj

Help Project - Visual Basic

190

.hpl

HP Graphics

191

.hqx

BinHex (File Name Extension - Macintosh)

192

.hst

Host

193

.ht

HyperTerminal

194

.htm

DOS File Name Extension For a Document With HTML Coding, Which Can be Read by WWW Browsers

195

.htm

File Name Extension For a Document With HTML Coding, Which Can be Read by WWW Browsers

196

.hwp

Hangul Word Processor

197

.hyc

Hyphenation - WordPerfect

198

.hyp

Hyphenation

199

.ica

IOCA Graphics

200

.icb

Targa Bitmap

201

.icm

Image Colour Matching

202

.ico

Icon - Windows or OS/2

203

.icon

Sun Icon and Cursor

204

.idd

Instrument Definition - MIDI

205

.ide

Integrated Development Environment Configuration

206

.idx

Index

207

.iff

Amiga

208

.igf

Inset Systems graphics - Hijaak

209

.iif

Interchange File - QuickBooks for Windows

210

.il

Icon Library

211

.ima

Winimage Compressed Format These Files Can be Decoded or Mounted by ShrinkWrap

212

.image

Mac Disk Image; a Compressed Format Which Can be Decoded or Mounted by DiskCopy, Disk Image Mounter Disk Charmer, and ShrinkWrap (ImageMaster)

213

.img

This File is a Macintosh Disk Image. Disk Copy Can be Used to Mount The Disk Image on The Macintosh Desktop. The Mounted Disk Image Will Behave Like a Read-Only Disk
214

.ind

Index

215

.inf

Information

216

.ini

Initialization - Configuration Settings

217

.iob

Imagine File

218

.isu

Netscape File

219

.it

MOD Music File Format

220

.iw

Idlewild Screensaver

221

.ix

Index File - Framemaker

222

.jff

JPEG File Interchange Format; a 24-bit Graphic Format. It Can be Opened With QuickTime, a WWW Browser, or a Graphics Viewer Such as JPEGView

223

.jif

JPEG Image Format

224

.jpeg

JPEG Bitmap

225

.jpg

File Extension for JPEG (Joint Photographic Experts Group). A File Stored in JPEG Format. JPEG,an ISO/ITU Standard For Storing Images With High Compression Capability, Uses a Discreet Cosine Transform That can Achieve Compression Rates of 100:1 (singificant Loss of Data From Original) and 20:1 (Minimal Loss). C-Cube Microsystems Introduced The First JPEG Chip

226

.jt

JT Fax

227

.jtf

JPEG Bitmap

228

.kdc

Kodak Photo-Enhancer

229

.kfx

Kofax

230

.lbl

Label - dBASE

231

.lbm

Deluxe Paint Graphics File

232

.ldb

Lock File - Microsoft Access

233

.leg

Legacy Document

234

.lha

File Name Extension for a PC/Amiga Compression Format Decodable by LHA Expander or MacLHA

235

.lhs

Literate Haskell Source File

236

.lhz

LHA Compression File

237

.lib

Library

238

.lic

License File - Shareware

239

.log

Log

240

.lst

List

241

.lwp

Lotus Word Pro Document

242

.lzh

LHARC Compression

243

.lzs

PC/Amiga compression format

244

.m3d

Motion 3D - Corel

245

.mac

MacPaint

246

.maf

Microsoft Access Form

247

.mak

Makefile

248

.mam

Microsoft Access Macro

249

.map

Map - Linkage Editor

250

.maq

Microsoft Access Query

251

.mar

Microsoft Access Report

252

.mat

Microsoft Access Table

253

.mcs

MathCAD Format

254

.mcw

Microsoft Word for Macintosh

255

.mdb

Access Database

256

.mdx

Multi-Index

257

.met

Metafile - OS/2

258

.meu

Menu

259

.mff

MIDI File Format

260

.mgf

Micrografx Draw Font

261

.mi

Miscellaneous

262

.mic

Microsoft Image Composer

263

.mid

MIDI File

264

.miff

An ImageMagick file format

265

.mil

Group 4 File

266

.mime

MIME; The Encoding Format used by the Multipurpose Internet Mail Extension

267

.mme

Mime Encoded File; The Encoding Format Used by the Multipurpose Internet Mail Extension

268

.mmf

Microsoft Mail File

269

.mmm

Macromind Animation

270

.mod

(For Module) - A Music File Format That Contains Digitized Sound Samples A .MOD File Takes More Memory Than a MIDI File Because a MIDI File Contains Instructions for Making Sounds But not The Actual Sound Samples. There are .MOD Players For Amiga, PC, and Macintosh Computers

271

.mov

Movie - QuickTime

272

.movie

QuickTime Movie - This File Can be Viewed With QuickTime Player

273

.moz

Mozilla - Netscape Cache file

274

.mp2

MPEG Layer II Compressed Audio. This file Can be Played Using QuickTime Player and Some Other Sound Players

275

.mp3

MPEG Layer III Compressed Audio. This File can be Played With QuickTime Player, Real Player, and Some Other Sound Players

276

.mpe

MPEG

277

.mpeg

MPEG Movie or Animation File. This File Can be Played with QuickTime Player

278

.mpg

MPEG Encoded File. This File is an MPEG Movie, and Can be Played With QuickTime Player

279

.mpnt

Macintosh MacPaint

280

.mpp

Microsoft Project project file

281

.mpt

Microsoft Project Template File

282

.mpx

Microsoft Project Export File

283

.mrk

Markup - Informative Graphics

284

.msg

Message File

285

.msn

Microsoft Network Document

286

.msp

Microsoft Paint

287

.mus

Music

288

.mvb

Microsoft Multimedia Viewer

289

.mys

Myst Saved Game File

290

.ndx

Index - dBASE

291

.net

Network File

292

.ng

Norton Guides

293

.nlm

NLM program - NetWare

294

.ntf

Notes Template File - Lotus Notes Database

295

.oab

Outlook Address Book - Microsoft

296

.oaz

OAZ Fax

297

.obd

Microsoft Office Binder

298

.obj

Object module

299

.ocx

Object Linking and Embedding (OLE) Custom Control

300

.olb

OLE Object Library

301

.ole

OLE object

302

.onx

Onyx Graphics Postershop

303

.ori

Original

304

.ovl

Overlay Module

305

.ovr

Overlay Module

306

.ozm

Sharp Organizer Memo Bank

307

.ozp

Sharp Organizer Telephone Bank

308

.p10

Tektronix Plot10

309

.pab

Personal Address Book - Microsoft

310

.pak

Quake Dame Data

311

.pal

Paintbrush Palette

312

.pas

Pascal Program File

313

.pat

Pattern - Corel Draw

314

.pbk

Microsoft Phonebook

315

.pbm

Portable Bit Map

316

.pcd

Photo CD Format

317

.pcl

HP LaserJet

318

.pcm

LaserJet cartridge information

319

.pcs

PICS Animation

320

.pct

PC Paint

321

.pcw

PC Write

322

.pcx

1.PC Paintbrush

2. Graphics file - Zsoft Format

323

.pdg

PrintShop Deluxev

324

.pdv

PC Paintbrush Printer Driver

325

.pfa

Type 1 Font - ASCII

326

.pfb

Type 1 Font - Encrypted

327

.pfm

Postscript Font Metrics,Windows Type 1 Font Metrics

328

.pgm

Portable Gray Map Bitmap

329

.phtml

HTML Document With Preprocessing Instructions (PPIs)

330

.pic

PICT Graphics Format, or PIXAR Picture File

331

.pict

Macintosh QuickDraw/PICT This Kind of File Stores Images in QuickDraw Vector Format. PICT2 Can Have Grayscale Bitmapped Images Also

332

.pif

Program Information File - Windows

333

.pit

PackIt - Macintosh Compression

334

.pix

Inset Systems Graphics

335

.pjx

Project File - Visual FoxPro

336

.pkg

AppleLink Package Compression Format These Files are Decodable by StuffIt Expander

337

.pl

Perl Script

338

.plt

Plotter Drawing

339

.pm

Pagemaker

340

.pm3

Pagemaker 3 Document

341

.pm4

Pagemaker 4 Document

342

.pm5

Pagemaker 5 Document

343

.png

1.Portable Network Graphics Bitmap

2.Paint Shop Pro Browser

344

.pov

Persistence Of Vision Raytracer

345

.ppa

PowerPoint Add-in - Microsoft

346

.ppd

PostScript Printer Description

347

.ppm

Portable Pixelmap

348

.pps

PowerPoint Slideshow

349

.ppt

PowerPoint Presentation

350

.prd

Printer Driver - Microsoft Word, Word Perfect, Microsoft Works

351

.prg

A dBASE Source Code File

352

.prj

Project File

353

.prn

1.Print File - Temporary

2.Xywrite Printer Driver

3.Post Script File.

354

.prs

Word Perfect Printer Driver

355

.prt

Formatted Text

356

.ps

PostScript. This is a Plain Text File

357

.psd

Photoshop Document

358

.pub

Publication - Ventura Publisher,Microsoft Publisher

359

.pwd

Pocket Word Document - Microsoft

360

.pwz

Microsoft PowerPoint Wizard

361

.pxl

Microsoft Pocket Excel

362

.qbw

QuickBooks for Windows

363

.qdk

Quarterdeck Qemm

364

.qlb

Quick Library

365

.qlc

ATM Font Information

366

.qry

Microsoft Query

367

.qt

QuickTime Movie, Binary File Type

368

.qtm

QuickTime Movie

369

.r8l

LaserJet Landscape Font

370

.r8p

LaserJet Portrait Font

371

.ra

RealAudio

372

.ram

Real Audio

373

.ras

Raster Graphics - Sun

374

.raw

Raw File Format - Bitmap

375

.rc

A File Name Extension Found in Many UNIX Files (.newsrc, etc.) Which Means "Run Commands"

376

.rec

Windows Recorder Macro File

377

.reg

Registration File

378

.rep

Report File

379

.rft

RFT-DCA

380

.rgb

An SGI RGB Image File

381

.ria

Alpharel Group IV Raster Graphics

382

.rib

Renderman Graphics

383

.ric

Roch FaxNet

384

.rif

Fractal Painter Bitmap

385

.riff

Resource Interchange File Format A Multimedia File Format; the Microsoft Equivalent to Amiga IFF Format

386

.rix

RIX Virtual Screen

387

.rla

Wavefront Raster Image

388

.rlc

CAD Overlay ESP - Image Systems

389

.rle

Run Length Encoded

390

.rm

Real Media

391

.rmi

RIFF MIDI File

392

.rnd

AutoShade Format

393

.rnl

GTX Runlength Raster Graphics

394

.rpt

Report file

395

.rtf

Microsoft Text and Graphics

396

.s

Assembly Language File - Unix

397

.s3m

MOD Music File

398

.sam

AmiPro

399

.sav

Saved Game

400

.sbp

IBM Storyboard Graphics / Superbase Text

401

.sc

Source Code - Paradox

402

.scm

ScreenCam Movie

403

.scp

Dial-up Networking Script

404

.scr

1.Screensaver - Windows.

2.Screen Layout - dBASE.

3.Script For Apple's Disk Copy Utility

405

.sct

Screen Capture Text - Lotus

406

.sdl

SmartDraw Library

407

.sea

Self-Extracting Archive (Stuffit or Compact Pro)

408

.seg

Segment (of a Compressed File Saved in Segments With Stuffit or Compact Pro)

409

.sep

TIFF Bitmap

410

.set

Setup Parameters

411

.sfl

LaserJet Landscape Font

412

.sfp

LaserJet Portrait Font

413

.sfs

PCL 5 Scalable Font

414

.shar

UNIX Shell Archive, Which Can be Decoded by Unshar

415

.shtml

HTML File With Embedded Server-side Includes (SSIs)

416

.si

SoftImage Image File

417

.sig

singature A .sig File Can be Set up and Automatically Attached to Outgoing Email, Newsgroup Postings, etc. It Includes The Name and Contact Information of The Sender, and May also Have ASCII art, Favorite Quotes, etc

418

.sit

Stuffit Compressed File

419

.sld

AutoCAD Slide

420

.slk

Symbolic Link (SYLK) Spreadsheet

421

.smi

Self-Mounting Image. This file is a Macintosh Disk Image, Similar to an .img File, But it Does Not Require The Use of Disk Copy. When The File is Downloaded, a Disk Image Appears on The Desktop. The Disk Image Will Behave Like a Read-Only Disk

422

.snd

Sound File

423

.snm

Netscape Mail

424

.spd

Speedo Scalable Font

425

.spx

Screen Peace Extension

426

.sqb

SyQuest Backup

427

.src

A File Used in The Creation of .INI Files For Configuration Settings

428

.sty

Style sheet - Ventura

429

.svx

Amiga 8SVX Sound

430

.swp

Swap - Temporary File

431

.syd

Sysedit Backup File

432

.syl

SYLK Spreadsheet Format

433

.synu

SDSC Synu Image

434

.sys

System File

435

.tal

Adobe Type Align

436

.tar

Tar - Tape ARchive. Tar is a UNIX Method of Archiving Files, Which can Also be Used by PCs. Tar Archives Files but Does not Compress Them, so Sometimes .tar Files are Compressed With Other Utilities, Which Produces Extensions like .tar.gz, .tar.Z, and .tgz. Archive Files With The .tar Extension Can be Extracted in UNIX With Tar or on a PC with Winzip or on The Mac With The Program Tar

437

.tar.gz

Ombined File Name Extension For a File That Has Been Archived Using tar and Then Gzipped

438

.tar.z

Combined File Name Extension for a File That has Been Archived Using tar and Then Zipped

439

.taz

Another Way of Writing .tar.Z

440

.tbk

Asymetrix Toolbook

441

.tdf

Typeface Definition - Speedov

442

.tex

Tex or LaTex Document

443

.tfm

Font Metrics - Intellifont

444

.tga

TARGA Graphics

445

.tgz

Another Name For .tar.z and .tar.gz

446

.theme

Desktop Theme - Windows 95

447

.thn

Thumbnail

448

.tif

TIFF Graphics File

449

.tiff

TIFF Graphics File

450

.tlb

OLE Type Library

451

.tmp

Temporary File

452

.toc

Table Of Contents

453

.trm

Terminal Settings - Windows

454

.ttc

TrueType Compressed Font

455

.ttf

rueType Font

456

.twf

TabWorks File (File Extension)

457

.tx8

MS-DOS Text

458

.txt

ASCII Text File

459

.usl

LaserJet Landscape Font

460

.usp

LaserJet Portrait Font

461

.uu

Uuencode Compressed File

462

.uue

Uuencode File

463

.vbp

Visual Basic Project

464

.vbx

Visual Basic Extension

465

.vda

Targa Bitmap

466

.vgr

Ventura

467

.viff

Khoros Visualization Image File

468

.vlb

Ventura Library

469

.voc

Sound Blaster

470

.vp

Ventura Publisher

471

.vst

Targa Bitmap

472

.vue

Relational View - dBASE

473

.vxd

Virtual Device Driver

474

.wab

Windows Address Book

475

.wav

Sound File

476

.wbk

Microsoft Word Backup

477

.wdb

Microsoft Works Database

478

.wid

Ventura Width Table

479

.win

Windows Backup File

480

.wiz

Microsoft Word Wizard

481

.wk1

Lotus 1-2-3, up to 2.01

482

.wk3

Lotus Version 3

483

.wk4

Lotus Version 4

484

.wkq

Quattro Spreadsheet

485

.wks

1.Lotus Worksheet.

2.Microsoft Works document

486

.wlr

VRML Page

487

.wmf

Windows Metafile

488

.wp

WordPerfect

489

.wpd

1.Windows Printer Description.

2.WordPerfect Demo.

3.WordPerfect Document

490

.wpg

WordPerfect Graphics

491

.wpm

WordPerfect Macro

492

.wps

Microsoft Works Document

493

.wpt

WordPerfect Template

494

.wri

Windows Write Document

495

.wrk

Symphony Spreadsheet

496

.ws1

WordStar For Windows 1 Document

497

.ws2

WordStar For Windows 2 Document

498

.ws3

WordStar For Windows 3 Document

499

.ws4

WordStar For Windows 4 Document

500

.ws5

WordStar For Windows 5 Document

501

.ws6

WordStar For Windows 6 Document

502

.ws7

WordStar For Windows 7 Document

503

.wvl

Wavelet Compressed Bitmap

504

.x

AVS X Image File

505

.xar

Corel Xara Drawing

506

.xbm

X Bitmap

507

.xfx

JetFax

508

.xif

Xerox Image Format

509

.xlc

Excel Chart

510

.xlk

Microsoft Excel Backup

511

.xlm

Microsoft Excel Macro

512

.xls

Excel Worksheet

513

.xlt

Microsoft Excel Template

514

.xm

MOD Music Format

515

.xpm

X Pixelmap

516

.xwd

X Window System Window Dump Image

517

.xxe

Xxencoded File

518

.yal

Arts & Letters Click art

519

.z

Unix compress File

520

.zip

File Compressed Using PKZIP

521

.zoo

Zoo

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