| Source | Target | | .xsd file | file XSD |
| .xsn file | file XSN |
| ANSI X.12 | ANSI X.12 |
| Application XML | Application XML |
| Asynchronous JavaScript And XML | Asynchronous JavaScript And XML |
| count XPath | count XPath |
| Excel XML Format | Formato XML Excel |
| eXtensible Business Reporting Language | XBRL (eXtensible Business Reporting Language) |
| Extensible Stylesheet Language Transformation | Trasformazione XSL, Extensible Stylesheet Language Transformation |
| External Application XML | External Application XML |
| LINQ to XML | LINQ to XML |
| Microsoft Touch Pack for Windows XP Tablet PC Edition | Microsoft Touch Pack per Windows XP Tablet PC Edition |
| Microsoft XML Core Services | Microsoft XML Core Services |
| Microsoft XPS Document Writer | Microsoft XPS Document Writer |
| Office Open XML formats | formati Office Open XML |
| Office XML Handler | Gestore XML Office |
| Open XML formats | formati Open XML |
| pitch | rotazione intorno all'asse x |
| PowerPoint XML Format | Formato XML PowerPoint |
| rich text XML mapping | mapping XML di testo formattato |
| Silverlight XAP file | file XAP di Silverlight |
| valid XML | XML valido |
| Visual Studio 2013 x86 Tools Command Prompt for Windows Phone | Prompt dei comandi degli strumenti di Visual Studio 2013 x86 per Windows Phone |
| well-formed XML | XML ben formato |
| Windows XP Validation Advisor | Windows XP Validation Advisor |
| Word XML Format | Formato XML Word |
| X.25 | X.25 |
| X.400 | X.400 |
| X.509 certificate | certificato X.509 |
| X.509 v3 certificate | certificato X.509 v3 |
| X++ | X++ |
| x64 | x64 |
| x64-based | basato su x64 |
| x86 | x86 |
| x86-based | basato su x86 |
| XAML | XAML |
| XAML activation | attivazione XAML |
| XAML schema context | contesto dello schema XAML |
| Xbox Music | Xbox Music |
| Xbox Music Pass | Xbox Music Pass |
| Xbox Music Store | Xbox Music Store |
| Xbox Video | Video Xbox |
| XBRL | XBRL |
| XBRL instance document | documento istanza XBRL |
| XBRL–Financial reporting | Reporting finanziario XBRL |
| XBRL–FR | XBRL–FR |
| XBRL–General Ledger | Contabilità generale XBRL |
| XBRL–GL | XBRL–GL |
| XBRL–Global Ledger | Contabilità generale XBRL |
| x-coordinate | coordinata x |
| X-header | X-Header |
| X-Header storage option | opzione di archiviazione X-Header |
| XHTML | XHTML |
| XImage | XImage |
| XLL | XLL |
| XML | XML |
| XML attribute | attributo XML |
| XML element | elemento XML |
| XML entity | entità XML |
| XML expansion pack | pacchetto di espansione XML |
