Apple AppleShare IP 5.0 Update - Manual (Page 25)

To use the Web & File Server Admin program’s Import Users command, you
need to have a file containing a list of user names (and optional attributes).
The file that you import must conform to the format described in this
appendix.
The simplest way to create a file that has the proper format is to use the Web
& File Server Admin program’s Export Users & Groups command. When you
use the Export Users & Groups command and specify that all of the users’
attributes are to be exported, a file having the following format is created:
User name Internet alias Comment E-mail attributes
Attribute fields are separated by a tab character, and user records are
separated by a carriage return character. Two adjacent tab characters indicate
an empty field. For example, if the user doesn’t have a comment, the empty
field is represented by two tab characters. If you don’t specify that an attribute
is to be exported, the resulting file contains only the attributes that you
specified for export. For example, if you do not specify the Comment
attribute, the resulting file contains the following fields, separated by a
tab character:
User name Internet alias E-mail attributes
For security reasons, the Export Users & Groups command does not export
passwords. If you want, you can edit the file, add passwords after the Internet
alias field, and then import the file.
Appendix E Import File Format