Hi I Used to work for Bavelloni and am still a certified Technician for them. The only way to export a file into another format is that you have to type in manually .dxf at the end. That is the only way to do it. if you have the software that allows you to chose from the type of file you will want to select all files. so an example would be you want to save a file called Project.dsg you will continues like you always would when you save a file. You will then select all files (if you have that option) and then erase the letters "dsg" now in it's place you will type "dxf" so in the end before you save you should see the file name being "Project.dxf" Hope this helps you out.