Missing ExcelReport documentation

I was not able .to find the documentation for ExcelReport Origam feature, introduced here:

https://www.origam.com/web/public/downloads/55dfed09-623d-4a98-ae6d-8136f32d8be2?lastStableBranchId=e6e99ec0-62e6-457a-a56a-cf7d3a5d070c

The documentation is going to be added soon.