Cannot import version 2 files into version 3

When I attempt to open version 2 files to begin the import wizard, I cannot click on the icons for the version 2 files. They are shaded and unclickable. Is there any way to correct this? I have restarted my MacBook several times but it makes no difference.

What extension are your version 2 files? Are they .aeonzip, or are they the older .aeon2 ?