Adding a blank row in between excisting rows

This is what I have:

A-------------B
gfdfd------sjfsdnjsnd
gfdfd------sjfsdnjsnd
gfdfd------sjfsdnjsnd
gfdfd------sjfsdnjsnd
gfdfd------sjfsdnjsnd
gfdfd------sjfsdnjsnd

This is what I need:

A-------------B
gfdfd------sjfsdnjsnd

gfdfd------sjfsdnjsnd

gfdfd------sjfsdnjsnd

gfdfd------sjfsdnjsnd

gfdfd------sjfsdnjsnd


I just need a black row between every row that I have now. I'm sure its simple but I can't seem to figure it out. I have tried a macro but don't really know how to work them, it just made a new line in the same spot.

Thanks in advance.

Cheers,
Sam