In addition to creating new records in the Address Book by importing a CSV file (as described in Creating the Address Book Data File), you can also update the Address Book by importing a CSV file.
CSV File Format
The format of the import file is the same whether creating new records or updating existing records (as described in Creating the Address Book Data File).
Creating New Records and Updating Existing Records at the Same Time
Preventing Changes in Existing Records
There are two options to prevent changes to values in existing records:
Therefore, the following is recommended in order to prevent changes to existing records:
Removing Values from a Contact's Record
To remove or "empty" values for an existing contact's record, "no value" can be represented in the import file for the field by entering nothing in the placeholder for the field (e.g., ",," where there are no characters between the two commas).
Example
In the CSV file example below, the Company value will be removed, since the placeholder for the Company name has no value (between the two commas corresponding with the COMPANY field).
LAST NAME,FIRST NAME,USER ID,COMPANY,PHONE,FAX
Smith,Bob,[email protected],,212-555-1234,212-555-3232