Hi @rsr.chandu
First use read range workbook to read the 2 excels in the datatable dt_ExcelA and dt_ExcelB respectively
Then use assign activity
dt_ExcelB = dt_ExcelB.AsEnumerable().
Where(Function(rowB) Not dt_ExcelA.AsEnumerable().
Any(Function(rowA) rowA("Your Value").ToString.Trim = rowB("Invoice Number").ToString.Trim)).
CopyToDataTable()
Try this
Hope this helps!