Inserting blank columns

[Guloluseus]

I have exported large amount of info from Primavera (programming software) that it now sitting in rows a-c. I need to copy/paste more info below it (from about row d-k) but this takes 2 columns as opposed to the ome that I currently have.



the short question- is there an easy way to insert a blank column between existing filled columns? There will be at least 400 columns of data, so while I can do it manually, its going to take a long, long time.