Due to interoperable feature of vCard, it uses widely to import/export information. For example if you want to export Outlook contacts, you can convert PST to vCard VCF file. SysTools vCard Export have an option for Outlook to vCard Conversion. Get your complete contacts from Outlook to vCard and use them any software those prefers VCF format. Most of the contacts management systems prefer vCard file format. Apart from Outlook to vCard Conversion, you can convert contacts from PST to XLS and WAB format. Most of the OS support vCard format so that it is one of the best solution to import/export contacts from one machine to other as well. Try the trial version at free of cost and convert 15 contacts. For accessing full features of the software, get the license key of the software (Personal License at $49 and Business License at $99).