They'll need to upload the XLS file to a location from which FM PRo can import it. It won't be able to import directly from the iPAD as far as I know.
Thank you both for the responses.
So the fact that I can import into Filemaker Pro from a FMP12 file located on an iPad is purely an in house FileMaker function (FMP12 to FMP12)
Looks like I will have to find a way to upload the xls to a hosted directory.
Don't see the reason for that. You have other options. In FM Go, you could even export a clone file with just the table and fields you need from a container field. Use a script inside that exported clone to import the data and then you can attach and email that record to yourself.