Add column 1&2&3 and write within 4th column using link queries

how to add column 1&2&3 and write it on to 4th column


Welcome to UiPath Community!

I hope you need to add columns in a excel file.

You have to read that excel as a datatable as “DataTable1”. And a new column “Total” in that table, then in assign activity you have put this expression.

DataTable1.Columns["Total"].Expression = "Column1+Column2+Column3";


Can you explain your requirement more clearly?