Have some read in data (from excel file) in a DataTable and now I want to filter this and copy only specific columns to the other one!

dataTable format:

```
some data 
ColA|ColB|ColC
xxxx|xxxx|xxxx
some data

```

`some data` represents other table data not related to ColA-ColC

How can I copy ColA-ColC with xxxx to the new DataTable? 

Thx