I have been trying to import a new lookup table for a pipe fitting family, but no matter what I do it gives me the "Separator in Header is Invalid" pop-up. I have dragged myself though countless forums and articles and I can't find anything wrong with my headers. I have even tried working directly from a lookup table that was previously loaded. I have also checked that there are no excess spaces floating around.There must be something I am missing (hopefully simple and obvious). Please help! 
-Ren

-Ren
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