In the eXpresseXpress Model topology export format, the Font Type column describes the font type and style to be used for the text on the object in the corresponding Object, I/O Flag or Annotation column. The cells in this column list the font type (e.g., "Times New Roman") with an optional font style prefix. These prefixes are as follows:
Bang (!) -- Bold
Percent Sign (%) -- Italics
Underscore (_) -- Underline
In the below excerpt from an Exported spreadsheet, two fonts are used (Garamond and Arial). Bold text is used for the objects described in rows 2-4 and 7-8, whereas bold italics are used for the text on the object described in row 11.