I have created a Maven plugin that provides the ability to generate Camel route coverage reports as HTML and as Excel-compatible .xlsx files. The plugin works in conjunction with the Camel Report Maven Plugin. The Camel Report Maven Plugin generates the XML files that are then converted to HTML and .xlsx files by this plugin.
The initial version of code can be found here: https://github.com/cziesman/camel-route-coverage-maven-plugin
I would like to donate this to the Apache Camel project.