What is a contact file and how do I open a contact file?
CONTACT is a contact file created by Windows Contacts, a built-in contact management program included with Windows Vista and Windows 7. It contains information about a person or organization, including name, picture, email address, phone number, home and work addresses, professional titles, and family members; located in the Windows Contacts folder for each Windows user.
Relevant contact file links:How to open contact file on Youtube
How to open contact file on Wikipedia
How to open contact file on Microsoft.com