e/Excellon file

Information
has gloss	eng: The Excellon file format is a text-based file format used to control the actions of a CNC drilling machine, commonly used In electronics manufacturing, for drilling printed circuit boards (PCBs). The Excellon file format is a variant of standard RS-274C. It consists of commands to instruct a CNC drilling machine to drill holes of specific diameters at specific locations on a PCB.
lexicalization	eng: Excellon file
instance of	c/CAD file formats