Choose the format of the file to which you are going to export your contacts.

Figure 4
Depending on the format you have chosen you can define additional formatting values. They are available for:
CSV
XML
HTML

Figure 5
Available fields:
DateTime Format - A date and time format string defines the text representation of a DateTime value. For example, the Birthday field for a given contact is from DateTime type.
Boolean True/False - how to define Boolean values in the exported file. For example, the field 'Private for a given contact is from Boolean type.
Float Format - how to define digital values containing a decimal point in the exported file.
Currency Format - how to define Currency values in the exported file. For example, the additional field Salary is from Currency type.
Null string - how to define values from the fields without an assumptive value.