In the field of Computer Science XNS stands for Xerox Network Services..
In the field of Computer Science XMMS stands for X MultiMedia System..
In the field of Computer Science XSL stands for Extensible Stylesheet Language..
In the field of Computer Science XSL-FO stands for Extensible StyleSheet Language Formatting Objects..
In the field of Computer Science XSLIT stands for Extensible StyleSheet Language Transformations..
In the field of Computer Science XUL stands for XML User Interface Language..
In the field of Computer Science ZIFS stands for Zero Insertion Force Socket..
In the field of Computer Science ZISC stands for Zero Instruction Set Computer..
In the field of Computer Science WMV stands for Windows Media Video..
In the field of Computer Science WOL stands for Wake-on-Lan..