How to set up a spreadsheet for importing into AttributeCreator

I’d like to maintain my database documentation in an Excel spreadsheet like this:

And then I’d like to import that into an AttributeCreator. When I try importing, the attribute names come through, but FME Form sets all the data types to varchar(200) instead of what I specified in the field ‘FME Data Type’ and imported in the import dialog.

How can I fix this or set up my spreadsheet differently?