Moving a column of text data into 3 columns of data?

I have a column of text data cells 1,2,3,4,5,6,7,8,9 and longer.   I want to create 3 column of data to graph and manipulate Cell in Columns. 1,2,3 3,4,5 5,6,7 8,9,10 and longer.   So i nee...