Gerber file making by EAGLE

When making an actual printed circuit board based on the data made from CAD, the data of Gerber form are used in
many cases.
Gerber data are the data formats which a photograph plotter maker's Gerber Scientific Instrument Company created.
All the information (the position of a hole, a size, thickness of a line, etc.) for automating manufacture of a printed
circuit board is numerically expressed with Gerber data. Gerber form is standardized as CAD output data of a printed
circuit board. The printed circuit board data created by EAGLE are the form only for EAGLE. It is not Gerber form.
There are also some companies which accept a printed circuit board by the EAGLE data(*.brd) like OLIMEX in
Bulgaria.
The data made with EAGLE is convertible for a Gerber file with the following operations.