New Post: Export as DataTable

I'm new at ClosedXML and was wondering if there is an easy way to export or save as a datatable or do I just need to loop the rows and columns? There is a great way to load a datatable and I was wondering if it also works in reverse.

Added Information:
I just saw a post about 3 years back and it states to just loop. If noting has changed I go with that.

Thanks