Mega 2560 Eagle file zip is broken

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Hi all,

EAGLE files: Arduino_ADK-Mega_2560-Rev3-reference-design.zip

can't open in EAGLE 5.11 only in EAGLE 6.x

Where can I get this Arduino_ADK-Mega_2560-Rev3-reference-design.zip file for EAGLE 5.11 ?

thx for answer...