Thank you for your post.
What FileMaker product are you using? What version of Excel are you using? What is the "exporting issue" you are referring to?
Sorry, I wasn't more specific. I am using FM 10.0v3 and Excel 12.2.3. I heard of the exporting .xls issues that they were having with Snow Leopard. I went ahead and installed Snow Leopard and tried it and I got a error message that portions of the program needed were missing and I would need to reinstall FM.
I found a workaround and exported the files as an .xlsx file and it worked fine. It's funny because I just tried it again to copy the error message verbatim and it saved and opened the FM file as an .xls. I don't know what to say. I hope it is fixed.