Where does SolidWorks get the hole callout from when using an extruded cut?

Where does the hole callout information come from when adding a callout to an extruded cut? I have modified the calloutformat.txt file to change the hole wizard standards but if I use the hole callout on a hole created with an extruded cut it doesn't seem to come from the .txt file. THRU is what comes in and it is not in the calloutformat.txt anywhere.

SolidworksDrawings And Detailing