Export data from DataTable to text file

Hi, I have a DataTable which contains a result of a query. The data are name, address, city and province.
I need to write these data into a txt file, but I must use three columns, so the output should be like this:
Name1                      Name2                       Name3
Address1                  Address2                   Address3
City1 Provvince1      City2 Provvince2        City3 Provvince3
Name4                  &nbs ...