I can't import into Eagle version 5.11

Load the LBR in a V7/8/9 Demoversion of EAGLE
EXPORT as Script (HELP EXPORT)
start the Script in V5 in a LBR bei SCRIPT ...

Best regards

Hello there!

Unfortunately, you need to have Version 6 or later to use SnapEDA. The reason is that their file format changed in Version 6 to the open XML format. Earlier versions do not support it. However, I encourage you to upgrade to a newer version. You'd be able to find a lot of new tools that will make your design process more seamless. Thanks for your comment.

Best regards,
Victor

azaffran work a treat, thank you