Recently active topics in FreeAgent Central tagged with mac

Im having problem opening my exported XLS file. Im using Mac Numbers not Excel, but it should work.... but Im getting the following message "The document was created with an unsupported version of Excel". I've tried several times downloading the file just incase it was corrupted but same issue.

On a Mac, exported my address book contacts to vCard format and continue to an error that reads "Please select a valid CSV file". Is the system down or are there any special tricks to getting the vCard format to work? For reference, I am trying to export quite a few contacts (1000+ to be more specific).