sparkfun/SparkFun_Eagle_Settings — pull request #1 by jasonkholden (2014-09-01 14:57:12+00:00)
Title: Fix oshpark drill file extension.  Needs to be .XLN not .TXT

OSH Park guidelines call for a .XLN extension in their gerbers.

https://oshpark.com/guidelines
boardname.GTL Top Layer
boardname.GBL Bottom Layer
boardname.GTS Top Soldermask
boardname.GBS Bottom Soldermask
boardname.GTO Top Silkscreen
boardname.GBO Bottom Silkscreen
boardname.GKO Board Outline
boardname.G2L only if you're uploading a four layer board
boardname.G3L only if you're uploading a four layer board
boardname.XLN Drills

Fix only tested by visualization on the website.
No boards sent to the fab yet