"File As" feature in Contacts

[tiger2000]

Dear All,

When we create a new contact, we can select the way to display by "File As".

Take this for example

Last Name : XYZ
First Name : ABC
email : axyz@test.com
File As : Last Name, First Name

when composing emails, click the "To:" button, we can select " XYZ, ABC <axyz@test.com> " as the recipient.

However, if you directly input axyx@test.com (or using auto-complete feature), you will see : "ABC XYZ <axyz@test.com>"

my questions is :
Can user customize the display format in "To" field when composing emails? (or by admin user?) it's kind of localization issue, cause most users use "LastName FirstName" format here.

any advice on this? Thanks.