| XHR (XMLHttpRequest) |
| XLL Compatible Custom Functions |
| XML |
| XML - Open Office XML |
| XML - Open XML Format |
| XML - Open XML SDK |
| XML - Serialization |
| XML Manifest |
| XML Manifest File |
| XML Manifest Validation |
| XML Schema Definition (XSD) |
| XML Schema Validation |
| XML Schema Validation Tool |
| XMLHttpRequest (XHR) |
| XMLSchema-instance |
| XSD (XML Schema Definition) |