Value repetition on exporting Machine learning extracted invoice data to excel sheet

I am trying to export Machine learning extracted invoice data to Excel sheet.For that, i followed the given steps
Export the Validation station obtained to Dataset.
Define a data table consisting of all fields extracted
From data set, data need to be updated to a datatable using ‘Merge data table’ activity where the source is Datasetname.Tables(0) and Destination is the name of data table.
Add data to excel sheet using Add range .
(Refered this video: UiPath Document Understanding - Invoice Data Extraction (Full Tutorial) - YouTube)

This worked for Structured documents(Form) but For Semi-structured documents(Invoice), This is giving repetition of few values.There is some problem in exporting few values. Is there any solution for this one?