what is it in the file arduino-mega2560_R3-reference-design.zip.

I am using AD6.9 try to open the sch file. there is a blank sch.
others boards's reference have the same problem.
Do I miss something?
Thanks

I am using AD6.9 try to open the sch file. there is a blank sch.
others boards's reference have the same problem.
Do I miss something?
Thanks

Open the .sch and .brd files with Eagle from www.cadsoft.de
In the US, opens to www.cadsoftusa.com

You might want German?
http://www.cadsoft.de/?lang=de

The SCH and BRD file are for Eagle. Get the freeware version of Eagle here:
https://www.cadsoftusa.com/download-eagle/freeware/

@Arnold_Sweden, please don't cross post anymore - asking the same question in multiple places.
Thanks
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