.NRL file extension

This is the basic program to work with .NRL extension

Oxygen XML Editor

Oxygen XML Editor NRL Schema

Oxygen XML Editor is a complete XML editing solution for XML developers and content authors. It supports all XML standards and files, including XML Schemas, CSS, XSLT, WSDL, RelaxNG, Schematron, Ant, and XQuery. You also get an XSLT and XQuery debugger that provides full control over the debugging process... (more)

The program works with the following extensions: xml, fo, xq, mod, nrl, rnc, xsl, rng, dtd, xsd, xpr, ent, sch, nvdl, wsdl, xslt, dita, xquery, ditamap and xevgenxml

.NRL extension is also supported by the following program:

<oXygen/> XML Editor

XML Editor NRL Schema