Location of Membership Card Templates?

Hello all,

(Apologies if this is not the right place to ask)

Hopefully this is obvious and that I'm just not looking at the right places, but does anyone know where the file lives for configuring membership card templates? I see that on the system table "T_Constituent_Report", our "Standard Member Card" has a d_object field populated. According to the documentation, "D Object – The file name for the report"

However, I can't seem to find the file template to make adjustments.

Thanks,
Allan