Which File Format is Best Used to Create a Logo to be Laser-Etched into Foam?

We accept both .eps or .dxf. one of the two are needed in order to create a logo file that can be laser-etched into foam.

The laser etchings occur with the help of our Blue Laser: CNC Engraving Machine


We can laser or drill text into both our foam and plastic materials. 


Currently we can only inscribe logos onto our foam boards. 
We do not currently have the capability to inscribe logos into our plastic material.