FileMaker files normally come with at least one layout for every table. Sometimes the layouts are kept off the layout list you see in the layouts drop down when you are in browse mode and it is possible to delete layouts to tables for which you do not have an immediate need.
You'll need to find or create a layout for each such table in order to use Export Records to export the data to an Excel File.
If he doesnt have layout create capability cant he use the Export Script step with the dialog.
Ah yes, but if he has the access level needed to create scripts, he can also create or find the layouts he needs.