Try it Online Playground
A playground for experimenting XML Document Transforms and xdt-extentions.
You can view the XDT format and syntax reference here https://docs.microsoft.com/en-us/previous-versions/aspnet/dd465326(v=vs.110)?redirectedfrom=MSDN#transform-attribute-syntax
This playground is based on the package xdt-extentions which brings additional transform operations to the standard XDT library.