In the manual under IMPORT you will find that a " is a valid field delimiter so putting quotes around the delimiter that you really want will only confuse filePro. Also, there is a section of that same subject that states:
IMPORTANT: You may use a few special codes with the IMPORT ASCII format to identify delimiters or field separators:
\r for carriage return
\f for form feed
\n for new line
\t for tab
Hope that helps.