| 1 |
.509 File Extension |
Internet Security Certificate |
| 2 |
.A4P File Extension |
A4Desk Pro Project Format |
| 3 |
.A5W File Extension |
Alpha Five Webpage Format |
| 4 |
.A5WCMP File Extension |
Alpha Five Web Publishing |
| 5 |
.ABD File Extension |
The Bat! Mail Processing System |
| 6 |
.ADR File Extension |
Opera Bookmarks Format |
| 7 |
.AEX File Extension |
Alpha Five Compiled Global Functions Format |
| 8 |
.AHTM File Extension |
HTML |
| 9 |
.ALX File Extension |
ActiveX Layout Control Format |
| 10 |
.AN File Extension |
Adobe Edge Animate Project Format |
| 11 |
.AP File Extension |
Active Page |
| 12 |
.AQF File Extension |
Aquifer-Generated Web Page |
| 13 |
.ARGO File Extension |
ArgoUML Project |
| 14 |
.ARO File Extension |
SteelArrow Web Application Format |
| 15 |
.ASA File Extension |
ASP Configuration Format |
| 16 |
.ASAX File Extension |
ASP.NET Application Optional Source Format |
| 17 |
.ASCX File Extension |
ASP.NET User Control Format |
| 18 |
.ASHX File Extension |
ASP.NET Web Handler Format |
| 19 |
.ASIS File Extension |
Apache As Is |
| 20 |
.ASMX File Extension |
ASP.NET Web Service Format |
| 21 |
.ASP File Extension |
Active Server Page |
| 22 |
.ASPX File Extension |
Active Server Page Extended Format |
| 23 |
.ASR File Extension |
ActionScript Remote Document |
| 24 |
.ATA File Extension |
Antenna Project |
| 25 |
.ATOM File Extension |
Atom Web Feed Format |
| 26 |
.ATT File Extension |
Web Form Data Format |
| 27 |
.AWM File Extension |
AllWebMenus Project Format |
| 28 |
.AXD File Extension |
ASP.NET Web Handler Format |
| 29 |
.AXL File Extension |
XML Project |
| 30 |
.BBE File Extension |
MindGenius Brainbloom |
| 31 |
.BCX File Extension |
Beam Report Standard Definition |
| 32 |
.BIKEY File Extension |
Bohemia Interactive Key |
| 33 |
.BIMD File Extension |
Blue Ink Meta-data Export |
| 34 |
.BINARYCOOKIES File Extension |
Safari Browser Cookies Package |
| 35 |
.BML File Extension |
Bean Markup Language Format |
| 36 |
.BOE File Extension |
Microsoft Outlook Express Backup |
| 37 |
.BOOKEXPORT File Extension |
Booksmart Export Format |
| 38 |
.BROWSER File Extension |
ASP.NET Browser Definition Format |
| 39 |
.BSON File Extension |
BSON Binary JSON |
| 40 |
.BTAPP File Extension |
UTorrent App |
| 41 |
.BTT File Extension |
ICQ Find Users |
| 42 |
.BTX File Extension |
InMagic Database Term/word Index |
| 43 |
.BWP File Extension |
BuRg3r Web Page |
| 44 |
.CAPS File Extension |
CaptureSaver |
| 45 |
.CER File Extension |
Internet Security Certificate |
| 46 |
.CERT File Extension |
Netscape Certificate Index |
| 47 |
.CFM File Extension |
ColdFusion Markup Format |
| 48 |
.CFML File Extension |
ColdFusion Markup Language Format |
| 49 |
.CHA File Extension |
IRC Chat Configuration Format |
| 50 |
.CHAT File Extension |
IRC Chat Configuration Format |
| 51 |
.CHM File Extension |
Compiled HTML Help Format |
| 52 |
.CHTML File Extension |
Compact HTML Document |
| 53 |
.CODASITE File Extension |
Coda Site Format |
| 54 |
.COMPRESSED File Extension |
WordCompress Compacted Web Format |
| 55 |
.COOK File Extension |
Netscape For Mac Cookie |
| 56 |
.CQL File Extension |
XDCC Catcher Queue List |
| 57 |
.CRL File Extension |
Certificate Revocation List Format |
| 58 |
.CRT File Extension |
Security Certificate |
| 59 |
.CSCPKT File Extension |
Sample Packet |
| 60 |
.CSHTML File Extension |
ASP.NET Razor Web Page |
| 61 |
.CSR File Extension |
Certificate Signing Request Format |
| 62 |
.CSS File Extension |
Cascading Style Sheet |
| 63 |
.CSS1 File Extension |
Cascading Style Sheet |
| 64 |
.DAP File Extension |
Download Accelerator Partial Download Format |
| 65 |
.DBM File Extension |
ColdFusion Server Format |
| 66 |
.DBMG File Extension |
Netscale Navigator History |
| 67 |
.DBNX File Extension |
Netscape For Mac Host |
| 68 |
.DER File Extension |
DER Certificate Format |
| 69 |
.DHTML File Extension |
Dynamic HTML Format |
| 70 |
.DISCO File Extension |
DISCO Discovery Document |
| 71 |
.DISCOMAP File Extension |
DISCO Discovery Output Format |
| 72 |
.DML File Extension |
DynaScript Format |
| 73 |
.DO File Extension |
Java Servlet |
| 74 |
.DOCHTML File Extension |
Microsoft Word HTML Document |
| 75 |
.DOCMHTML File Extension |
Microsoft Word MIME HTML Document |
| 76 |
.DOTHTML File Extension |
Microsoft Word HTML Document Template |
| 77 |
.DOWNLOAD File Extension |
Partially Downloaded Format |
| 78 |
.DWT File Extension |
Dreamweaver Web Page Template |
| 79 |
.ECE File Extension |
Escenic Dynamic Web Page |
| 80 |
.ED2K File Extension |
EDonkey Download Link |
| 81 |
.EDGE File Extension |
Adobe Edge Project Format |
| 82 |
.EPIBRW File Extension |
Web Format Location |
| 83 |
.ESPROJ File Extension |
Espresso Project Format |
| 84 |
.EWP File Extension |
Ewisoft Website Project Format |
| 85 |
.EZM File Extension |
EasyOffice Mail |
| 86 |
.FCGI File Extension |
FastCGI Format |
| 87 |
.FEED-MS File Extension |
Microsoft Rss Feed Store |
| 88 |
.FEEDSDB-MS File Extension |
Microsoft RSS Feeds Store |
| 89 |
.FWEB File Extension |
Fortran WEB |
| 90 |
.FWP File Extension |
Microsoft Expression Web Package |
| 91 |
.GETRIGHT File Extension |
GetRight Unfinished Download |
| 92 |
.GNE File Extension |
Flickr Web Page |
| 93 |
.GRX File Extension |
GetRight Format List |
| 94 |
.GSCRIPT File Extension |
Link To Google Scripts Web Application Script |
| 95 |
.GSP File Extension |
IMail Error Message Format |
| 96 |
.HANDLEBARS File Extension |
Handlebars Template |
| 97 |
.HATHDL File Extension |
Hentai@Home Download |
| 98 |
.HDM File Extension |
HDML Format |
| 99 |
.HDML File Extension |
Handheld Device Markup Language Format |
| 100 |
.HSQL File Extension |
HtmSQL Html |
| 101 |
.HTACCESS File Extension |
Apache HTACCESS Format |
| 102 |
.HTC File Extension |
HTML Component Format |
| 103 |
.HTD File Extension |
Adobe ExtendScript HTML |
| 104 |
.HTM File Extension |
Hypertext Markup Language Format |
| 105 |
.HTML File Extension |
Hypertext Markup Language Format |
| 106 |
.HTML5 File Extension |
HTML5 Hypertext Markup Language Revision 5 Source |
| 107 |
.HTMS File Extension |
PHP HTML Document |
| 108 |
.HTX File Extension |
HTML Extension Format |
| 109 |
.HXS File Extension |
Help 2 Compiled Help Format |
| 110 |
.HYPE File Extension |
Hype Document |
| 111 |
.IDC File Extension |
Internet Database Connector Format |
| 112 |
.IE3 File Extension |
Internet Explorer 3 |
| 113 |
.IHTML File Extension |
Inline HyperText Markup Language |
| 114 |
.ILHT File Extension |
Safari Internet Location |
| 115 |
.IMAP File Extension |
Merak Mail Server Internet Message Access Protocol |
| 116 |
.IMH File Extension |
IncrediMail Contacts Export |
| 117 |
.IMPORTED File Extension |
UTorrent Torrent |
| 118 |
.IQY File Extension |
Internet Query |
| 119 |
.ITMS File Extension |
ITunes Music Store Link Format |
| 120 |
.ITPC File Extension |
ITunes Podcast Link Format |
| 121 |
.IVP File Extension |
Panorama |
| 122 |
.IWDGT File Extension |
IWeb Widget Format |
| 123 |
.IZS File Extension |
1st Page 2000 JavaScript Example |
| 124 |
.J2SI File Extension |
Jazz Jackrabbit 2 Internet Server Link |
| 125 |
.JCCFG3 File Extension |
FlashGet Incomplete Download |
| 126 |
.JCD File Extension |
FlashGet Saved |
| 127 |
.JCZ File Extension |
Liquid Motion Animation |
| 128 |
.JHTML File Extension |
Java HTML Web Page |
| 129 |
.JNLP File Extension |
Java Web Start Format |
| 130 |
.JS File Extension |
JavaScript Format |
| 131 |
.JSON File Extension |
JavaScript Object Notation Format |
| 132 |
.JSP File Extension |
Java Server Page |
| 133 |
.JSPA File Extension |
Java Servlet Alias |
| 134 |
.JSPX File Extension |
XML Java Server Page |
| 135 |
.JST File Extension |
JavaServer Page Document |
| 136 |
.JVS File Extension |
JavaScript Proxy Autoconfig Format |
| 137 |
.JWS File Extension |
Java Web Services Format |
| 138 |
.LASSO File Extension |
Lasso Database-Driven Web Page |
| 139 |
.LAVS File Extension |
Liquid Audio Secured Download |
| 140 |
.LBC File Extension |
Cloaked Affiliate Link Builder Saved Link |
| 141 |
.LDI File Extension |
LDIF Address Book Interchange Format |
| 142 |
.LDMT File Extension |
Likno Drop-Down Menu Trees |
| 143 |
.LESS File Extension |
LESS Style Sheet |
| 144 |
.LWAC File Extension |
Likno Web Accordion Builder |
| 145 |
.LWBM File Extension |
Likno Web Button Maker |
| 146 |
.LWTT File Extension |
Likno Web Tooltips Builder |
| 147 |
.MAFF File Extension |
Mozilla Archive Format |
| 148 |
.MAILDB File Extension |
MSN Mail |
| 149 |
.MAILSTATIONERY File Extension |
Apple Mail |
| 150 |
.MAPX File Extension |
Mapjects Client Webparts Format |
| 151 |
.MASTER File Extension |
ASP.NET Master Page |
| 152 |
.META4 File Extension |
Metalink 4.0 |
| 153 |
.METALINK File Extension |
Metalink 3.0 |
| 154 |
.MHT File Extension |
MHTML Web Archive |
| 155 |
.MHTM File Extension |
Mime HTML (MHTML) |
| 156 |
.MHTML File Extension |
MIME HTML Format |
| 157 |
.MLM File Extension |
Novell GroupWise Saved Email Message |
| 158 |
.MMDF File Extension |
Multi-channel Memorandum Distribution Facility Mailbox Format |
| 159 |
.MOSS File Extension |
Netscape Navigator For Mac HTML |
| 160 |
.MOZ File Extension |
Mozilla Cache Format |
| 161 |
.MOZEML File Extension |
Mozilla Thunderbird Mail Message |
| 162 |
.MSIE File Extension |
Microsoft Internet Explorer For Mac HTML |
| 163 |
.MSPX File Extension |
Microsoft ASP.NET Web Page |
| 164 |
.MTML File Extension |
Meaningful Text Markup Language |
| 165 |
.MUSE File Extension |
Adobe Muse Website Project |
| 166 |
.MVC File Extension |
MivaScript Compiled Format |
| 167 |
.MVR File Extension |
IBM HotMedia Multimedia Format |
| 168 |
.MWE File Extension |
OpenArchitectureWare Workflow |
| 169 |
.MXDL File Extension |
Maxthon Incomplete Download |
| 170 |
.NEWSLOC File Extension |
Apple Mac OS X Finder News Internet Location |
| 171 |
.NOD File Extension |
NetObjects Fusion Format |
| 172 |
.NOF File Extension |
NetObject Fusion 5.0 |
| 173 |
.NXG File Extension |
ESite Builder NXG Web Page |
| 174 |
.NZB File Extension |
NewzBin Usenet Index Format |
| 175 |
.OAM File Extension |
Adobe Edge Animate Widget Format |
| 176 |
.OBML File Extension |
Opera Mini Saved Web Page |
| 177 |
.OBML15 File Extension |
Opera Mini 5.1 Saved Web Page |
| 178 |
.OGNC File Extension |
Dynamic Web Page |
| 179 |
.OPML File Extension |
Outline Processor Markup Language Format |
| 180 |
.OTH File Extension |
OpenDocument HTML Template |
| 181 |
.OUTLOOK97 File Extension |
Microsoft Outlook Custom Mail |
| 182 |
.P12 File Extension |
Personal Information Exchange Format |
| 183 |
.P7 File Extension |
PKCS #7 Digital Certificate Format |
| 184 |
.P7B File Extension |
PKCS #7 Certificate Format |
| 185 |
.P7C File Extension |
PKCS #7 Certificate Format |
| 186 |
.PAC File Extension |
Proxy Auto-Config Format |
| 187 |
.PAGE File Extension |
HybridJava Web Page |
| 188 |
.PBX File Extension |
Outlook Express Message Folder |
| 189 |
.PEM File Extension |
Privacy Enhanced Mail Certificate |
| 190 |
.PHP File Extension |
PHP Source Code Format |
| 191 |
.PHP3 File Extension |
PHP 3 Web Page |
| 192 |
.PHP4 File Extension |
PHP 4 Web Page |
| 193 |
.PHP5 File Extension |
PHP 5 Web Page |
| 194 |
.PHT File Extension |
Partial Hypertext |
| 195 |
.PHTM File Extension |
PHP-Based Web Page |
| 196 |
.PHTML File Extension |
PHP Web Page |
| 197 |
.PIH File Extension |
Karrigell Python HTML |
| 198 |
.PM1 File Extension |
Pegasus Mail Secondary Address Book Index |
| 199 |
.PMI File Extension |
Pegasus Mail Message Folder Index |
| 200 |
.PMX File Extension |
Pegasus Mail Outgoing Message |
| 201 |
.PPTHTML File Extension |
PowerPoint HTML Presentation |
| 202 |
.PPTMHTML File Extension |
Microsoft PowerPoint MIME HTML Presentation |
| 203 |
.PTW File Extension |
AutoCAD Publish To Web Format |
| 204 |
.PUBKR File Extension |
Pretty Good Privacy Public Key Ring Data |
| 205 |
.QBO File Extension |
QuickBooks Online Bank Statement Format |
| 206 |
.QF File Extension |
Qompose Web Page Template |
| 207 |
.QQQ File Extension |
TotalFix Fixed AVI |
| 208 |
.QRM File Extension |
Qworum Message Format |
| 209 |
.RHTML File Extension |
Ruby HTML Web Page |
| 210 |
.RJS File Extension |
Ruby Javascript Format |
| 211 |
.RNK File Extension |
Dial-up Shortcut |
| 212 |
.RSS File Extension |
Rich Site Summary |
| 213 |
.RT File Extension |
RealText Streaming Text Format |
| 214 |
.RW3 File Extension |
RapidWeaver 3 Site Format |
| 215 |
.RWP File Extension |
RapidWeaver Package |
| 216 |
.RWSW File Extension |
RapidWeaver Site Format |
| 217 |
.RWTHEME File Extension |
RapidWeaver Theme |
| 218 |
.SAVEDDECK File Extension |
Nokia Saved Web Page |
| 219 |
.SEAM File Extension |
Seam Framework Java Servlet Format |
| 220 |
.SECUREDOWNLOAD File Extension |
Safari Download |
| 221 |
.SEX File Extension |
Alpha Five Set Index |
| 222 |
.SHT File Extension |
HTML Format With Server Side Includes |
| 223 |
.SHTM File Extension |
HTML Server Side Include Format |
| 224 |
.SHTML File Extension |
Server Side Include HTML Format |
| 225 |
.SITE File Extension |
GoLive Website Project Format |
| 226 |
.SITEMAP File Extension |
ASP.NET Site Map Format |
| 227 |
.SITES File Extension |
IWeb Site Design Project |
| 228 |
.SITES2 File Extension |
IWeb Site Design Project |
| 229 |
.SPC File Extension |
Software Publisher Certificate Format |
| 230 |
.SPDESIGNOPEN File Extension |
SharePoint Designer |
| 231 |
.SPDESIGNSITEMAP File Extension |
SharePoint Designer Site Map |
| 232 |
.SRX File Extension |
SPARQL Query Results XML Format Result |
| 233 |
.SSAGE File Extension |
Inbound Internet Email Message |
| 234 |
.STM File Extension |
HTML Server Side Include Format |
| 235 |
.STML File Extension |
SSI HTML Format |
| 236 |
.SUCK File Extension |
SiteSucker Website Format |
| 237 |
.SVC File Extension |
WCF Web Service Format |
| 238 |
.SVR File Extension |
Compressed Virtual World |
| 239 |
.SWF2 File Extension |
Flash |
| 240 |
.SWFL File Extension |
Shockwave Flash |
| 241 |
.SWZ File Extension |
Adobe Flash Player Cache Format |
| 242 |
.TBB File Extension |
The Bat! E-mail Hives |
| 243 |
.TNF File Extension |
Transport Neutral Encapsulation Format |
| 244 |
.TPS File Extension |
Scam Torrent Format |
| 245 |
.TVPI File Extension |
TitanTV Television Listing Format |
| 246 |
.TVVI File Extension |
TitanTV Television Listing Format |
| 247 |
.UCF File Extension |
WebEx Media Format |
| 248 |
.UHTML File Extension |
UHTML Document Format |
| 249 |
.UPL File Extension |
StarMoney Agent Download |
| 250 |
.URL File Extension |
Internet Shortcut |
| 251 |
.URLS File Extension |
GetRight Internet Shortcuts List |
| 252 |
.URL_ File Extension |
Internet Shortcut - URL - Uniform Resource Locator |
| 253 |
.VBD File Extension |
Visual Basic ActiveX Document |
| 254 |
.VBHTML File Extension |
ASP.NET Razor Web Page |
| 255 |
.VDW File Extension |
Visio Web Drawing |
| 256 |
.VLP File Extension |
LiveSite Project |
| 257 |
.VNU File Extension |
CoffeeCup Visual Site Designer Project |
| 258 |
.VRGE08CONTACT File Extension |
Microsoft Entourage 2008 Contact |
| 259 |
.VRGE08EVENT File Extension |
Microsoft Entourage 2008 Event |
| 260 |
.VRGE08GROUP File Extension |
Microsoft Entourage 2008 Group |
| 261 |
.VRGE08MESSAGE File Extension |
Microsoft Entourage 2008 Message |
| 262 |
.VRGE08NOTE File Extension |
Microsoft Entourage 2008 Note |
| 263 |
.VRML File Extension |
VRML Format |
| 264 |
.VSDISCO File Extension |
DISCO Dynamic Discovery Document |
| 265 |
.WBS File Extension |
WebExpress Website |
| 266 |
.WBXML File Extension |
WAP Binary XML Format |
| 267 |
.WEB File Extension |
Xara Web Document |
| 268 |
.WEBARCHIVE File Extension |
Safari Web Archive |
| 269 |
.WEBARCHIVEXML File Extension |
Android Web Browser Archive |
| 270 |
.WEBBOOKMARK File Extension |
Safari Web Bookmark Format |
| 271 |
.WEBHISTORY File Extension |
Safari Web History Format |
| 272 |
.WEBINTENTS File Extension |
Webintents |
| 273 |
.WEBLOC File Extension |
Mac OS X Website Location |
| 274 |
.WEBPUBLISHHISTORY File Extension |
Alpha Five |
| 275 |
.WEBSITE File Extension |
Internet Explorer Pinned Site Shortcut |
| 276 |
.WEBTEST File Extension |
Microsoft Visual Studio Web Test |
| 277 |
.WGP File Extension |
Web Gallery Project |
| 278 |
.WGT File Extension |
Opera Widget Format |
| 279 |
.WHTT File Extension |
HTTrack Website Copier Format |
| 280 |
.WML File Extension |
Wireless Markup Language Format |
| 281 |
.WN File Extension |
WN Web Format |
| 282 |
.WOA File Extension |
WebObjects Application |
| 283 |
.WRF File Extension |
WebEx Recording |
| 284 |
.WSDL File Extension |
Web Services Description Language Format |
| 285 |
.WTK File Extension |
WinTalk URL Address |
| 286 |
.WWT File Extension |
WinDev Page Template |
| 287 |
.XBEL File Extension |
XBEL Bookmarks Format |
| 288 |
.XBL File Extension |
Extensible Binding Language Format |
| 289 |
.XFDL File Extension |
XFDL Format |
| 290 |
.XHT File Extension |
XHTML Format |
| 291 |
.XHTM File Extension |
Extensible Hypertext Markup Language Document |
| 292 |
.XHTML File Extension |
Extensible Hypertext Markup Language Format |
| 293 |
.XPD File Extension |
XML Pipeline Document |
| 294 |
.XSS File Extension |
XML Style Sheet |
| 295 |
.XTML File Extension |
XML4web Virtual HTML Document |
| 296 |
.XUL File Extension |
XML User Interface Language Format |
| 297 |
.XWS File Extension |
Xara Web Designer Graphic |
| 298 |
.YAWS File Extension |
Yaws Source |
| 299 |
.ZED File Extension |
BitTorrent Metainfo |
| 300 |
.ZFO File Extension |
XSL-FO Online Form |
| 301 |
.ZHTML File Extension |
Secure IE Zipped HTML Format |
| 302 |
.ZUL File Extension |
ZK User Interface Format |
| 303 |
.ZVZ File Extension |
Malware Format |