.xml - XML document
.000 - Linux, FreeBSD file
.ctt - Windows Live Messenger Contact List
.metadata_never_index - MAC OS X metadata settings file
.pst - Microsoft Office Outlook personal folder file
.part - Mozilla Firefox partial download file
.uccapilog - Windows Live Messenger file
.mso - Microsoft Orgchart file
file extension XPT - Mozilla Firefox file (XPCOM Type Library file format)
.XPTFile extension XPT description:
File extension used by Mozilla Firefox.
XPCOM type libraries, or "typelibs", are binary interface description files generated by the XPIDL compiler. Type libraries enumerate the methods of one or more interfaces, including detailed type information for each method parameter. Typelibs might be more aptly named "interface libraries", but Microsoft has already established a precedent with their naming scheme and we'll stick with it to avoid developer confusion.
Ideally, XPCOM typelibs would be binary-compatible with those generated by Microsoft's MIDL compiler, but the MS typelib format is proprietary. Thus, this document specifies a format quite different from the Microsoft format.
Note that the typelib is not merely a tokenized form of the IDL. Rather, it's intended to accurately represent binary XPCOM interfaces, with annotations derived from the IDL.
Associated applications to file extension XPT:
Company / developer:
Linspire, Inc.
A complete Web Authoring System for Linux desktop users as well as Microsoft Windows and Macintosh users to rival programs like FrontPage and Dreamweaver. Nvu (which stands for "new view") makes managing a web site a snap. Now anyone can create web pages and manage a website with no technical expertise or knowledge of HTML.
Company / developer: Mozilla Foundation
Firefox 3
The Web is all about innovation, and Firefox 3 sets the pace with dozens of new features, including the smart location bar, one-click bookmarking and blindingly fast performance.
Mozilla Firefox (abbreviated officially as Fx, but also commonly as FF) is a free web browser descended from the Mozilla Application Suite, managed by the Mozilla Corporation. Firefox had 19.03% of the recorded usage share of web browsers as of June 2008, making it the second-most popular browser in current use worldwide, after Internet Explorer.
Firefox uses the free Gecko layout engine, which implements some current web standards plus a few features which are intended to anticipate likely additions to the standards.
Firefox includes tabbed browsing, a spell checker, incremental find, live bookmarking, a download manager, and an integrated search system that uses the user's desired search engine. Functions can be added through around 2,000 add-ons created by third-party developers,the most popular of which include NoScript (script blocker), Tab Mix Plus (adds many customizable options to tabs), FoxyTunes (controls music players), Adblock Plus (ad blocker), StumbleUpon (website discovery), DownThemAll! (download functions) and Web Developer (web tools).
Firefox runs on various versions of Microsoft Windows, Mac OS X, Linux, and many other Unix-like operating systems. Its current stable release is version 3.0, released on June 17, 2008.Firefox's source code is free software, released under a tri-license GPL/LGPL/MPL.