Font Definitions
This is where font definitions used in this workbook are expressed. Elements of the font definition may reference theme definitions.
<fonts count="1"> <font> <b/> <sz val="11"/> <color theme="1"/> <name val="Calibri"/> <family val="2"/> </font> </fonts>
This font definition specifies bold face, font size of "11", a font color specified in the Theme part, specifically the color whose index is "1" in the <clrScheme> collection, a font name of "Calibri", and whose font family value is "2" (for more explanation on font family, please refer to the Styles reference material). A <font> definition is referenced by index (fontId) from either a <cellXf> or a <cellStyleXf>.
A font record is referenced by zero-based index, meaning the numerical order in which the font appears under fonts.