Although it can be done in the Finder, it will be easier done from within an application.
The Address Book system utility can grok (import) contact information that you have saved or exported from other applications in vCard, LDAP Interchange Format (LDIF), tab-delimited, and comma-separated value (CSV) formats.
If you have enough access to turn that data into one of those files, then start Address Book. Command-0 starts an import, and you can open the file anywhere on your hard drive. The upper right hand text box provides string search for your HD.
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Although it can be done in the Finder, it will be easier done from within an application.
The Address Book system utility can grok (import) contact information that you have saved or exported from other applications in vCard, LDAP Interchange Format (LDIF), tab-delimited, and comma-separated value (CSV) formats.
If you have enough access to turn that data into one of those files, then start Address Book. Command-0 starts an import, and you can open the file anywhere on your hard drive. The upper right hand text box provides string search for your HD.