Export CGM macro

I have what is probably a simple question that has me stumped. I am working on a macro that resizes my drawing size and then resizes the elements to fit in the new drawing. I then want to export the file out to a CGM file. I do not want to add the filename manually, I want to be able to put the ActiveDoc.name in the command "EXPORT". What I need help with is how do I have the "Path" portion of the  EXPORT command use the ActiveDoc.name in the path?

Thanks for any help,

Keith