public NPromise<NUndefined> SaveToFileAsync( 
   NFile file,
   NEncoding encoding
)

Parameters

file

The file to write to.

encoding

The encoding to use.

Target Platforms: Windows 11, Windows 10, Windows 7, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, Windows Server 2012, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later)

Reference

NXmlDocument Class
NXmlDocument Members
Overload List