Hi Can you please give more details , what you are trying to achieve. Let me give you some hint even though i am not sure what’s your goal.
I am expecting that you have used Excel Application Scope to read the sheet name and after that used read range to get the excel data in a data table (as an example data table name is OutDT). Now create one Array and then use for each row activity to loop through each row of datatablea and at the same time inside loop add column values tot the array.