BOT is a Gerber format, which means it is part of a larger group of 2-D vector images used as a standard in the printed circuit board (PCB) industry. Gerber images are processed by photoplotting machinery in order to produce PCBs and they contain descriptions of different layers of the board or other details (electrical connections, vias, pads, drilling or milling data etc.). BOT files describe the bottom copper layer of a PCB and they can be used in the production of such a board without any other external files.
The quick and simple way to handle your files is to get a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch conversions. As you will soon realize, reaConverter will help you avoid spending countless hours trying to figure out how to convert multiple BOT files as once.
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