Data display problem.. small question from a newbie

hi guys,         I have a table in which there are 7 column. I have select all data from the table but in the time of display I want to display last 5 column(just hide first 2 column) The following code display all data(7 column): <table> <% for file_data in @file_datas %> <tr>   <% for column in FileData.content_columns %>

<% for column in FileData.content_columns[2 .. FileData.content_columns.length] %>