I AM TRYING TO CREATE A EXPORT SPECIFICATION NAME FOR MY MACRO. WHERE DO I CREATE A SPECIFICATION NAME TO EXPORT DATA VIA A MACRO TO A FIXED WIDTH TEST FILE?

You must use the File/save as/export wizard to export the file once manually. At the end of the process, press the advanced button to get to the place where you can save the spec and give it a name. Once the named spec is created and saved, you can reference it in the macro.