.DRL File Extension
File TypeGerber Drill Rack File
What is a DRL file?
Contains drill data for manufacturing a printed circuit board (PCB) based on the Gerber specifications standard; includes data about the drilling tools and drill sizes used in creating the board.
Gerber drill rack files are also called "Excellon drill files."
NOTE: The primary PCB design and manufacturing data is stored in a .GBR file.