How to interchange the columns in excel?

[ppr (Peter Preuss)]

Also have a look at the SetOrdinal Method of a datrow

How to add a column in-between the column in datatable

Add the Datacolumn to the datatable and use later SetOrdinal for moving it on a particular position [grafik] [grafik] e.g. 1 Adopt the variables and argument values to your specific scenario. Screenshots just illustrate the essentials