Customer Group Import:
You can create multiple groups just by one click. From main menu "Customers ---> Customer Group ---> Import Customer Group" This page is visible to only Partner, Manager.
from customer group page clicked on
button.
Click Here link: it is a sample file which will help you to upload file as per given required fields
Upload only .xls file
To view imported new group click on
To edit / delete / view the specific group follow the instruction mentioned in the screen shot: