| .xpj |
RoboHelp HTML Project File |
| .xlb |
Setting File |
| .xdp |
XML Data Package |
| .xul |
XML User Interface Language File |
| .xef |
eManager Form Data |
| .xmb |
X-Wing Mission Briefing File |
| .xht |
XHTML File |
| .xlf |
XLIFF Document |
| .xlnk |
XML Shortcut File |
| .xspf |
XSPF Playlist File |
| .xmp |
Extensible Metadata Platform File |
| .xmcd |
Mathcad Worksheet File |
| .xmmap |
MindManager XML Map File |
| .xaf |
3ds Max XML Animation File |
| .xmi |
XML Metadata Interchange File |
| .xrf |
Cal3D XML Materials File |
| .xmf |
Cal3D XML Mesh File |
| .xbel |
XBEL Bookmarks File |
| .xej |
Expression Encoder Job File |
| .xel |
Expression Encoder Live Encoding File |
| .xappl |
Spoon XML Application Configuration File |
| .xsf |
InfoPath Form Definition File |
| .xrff |
Extensible Attribute-Relation File Format |
| .xamlx |
Visual Studio Workflow Service File |