hi Experts! how to delete in these case?

Here is an issue,  i just try to select single column but by default it selecting multiple column, please help me how to delete. I've tried 2 possibilities  

1. find &select->goto special->blanks and deleted all the blanks ,  (" it works good but only few columns has been deleted) .

2. on the other hand I've used KUTOOL  (" it works good but only few columns has been deleted")

but still have have a lot to delete . please help me . and i 've enclosed my issues's  screenshot, please help ,me. 

http://social.msdn.microsoft.com/Forums/getfile/433994