Hi! I've opened your file, it can be easy exported to any of common used 2d formats for cutting. Will be glad to export it in *.step (2d) for you in few minutes. To be honest, *.step format is rarely used for laser cutting, usually preferred formats for laser cutting software are *.eps, *.ai, dxf (2d dxf) and *.svg. But i can give you all of them additionally to *.step. Fast completion and good quality guarantee. Waiting for your reply :)