XLN is an Excellon Drill File, a part of a Gerber group formats. XLN is widely used in the drilling of printed circuit boards industry.
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 XLN files as once.
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