How to generate board outline

Layout
1

I was looking into the seeedstudio submission requirement and they ask for board outline file "pcbname.GML/GKO "

http://support.seeedstudio.com/knowledgebase/articles/387975-can-i-use-another-software-beside-eagle-to-generat

Any suggestion?

2

Just rename the generated gerber file for edge.cuts layer to .gko, that’s all.

3

Yeah, I always feel uncomfortable doing that kind of thing but it’s just convention and which programs use which extensions. The gerber info is nearly always the same.

4

Different fabs often ask for differently named drill files too. *.drl and *.txt are fairly common extentions.