TheMeq's Font Converter 1.23.8479.846

This software will allow you to select a font from your installed fonts and convert it to an XNB file. 

This is an ALPHA test version so any feedback will be appreciated. Please give it a try and see if you get the correct outputs. The software will list all font families, but you must choose the root font (Ie, Don't select SemiLight or Condensed fonts, just choose the family font). I'm working on removing these in the next version. 

Please do let me know if this works for you or not.