In the Document Understanding framework, once you complete the data extraction scope, the output you get is a variable of type “ExtractionResult”.
For you to get the data you extracted, you have to use the activity called “Export Extraction Results”. This will take the ExtractionResult variable as input and give you a DataSet variable as the output.
This DataSet variable contain multiple DataTables and these datatables do contain the data you extracted from the invoice.
Hence the DataSet contain multiple data tables, you have to next use the For Each activity, and configure the argument of that to DataTable.
Within the For Each activity, use any type of activity that you need to get the data from each data table. For example, if you wish to write the data into a excel sheet, you can simply use write range inside the For Each
Hope this helps…