Final answer:
To open the Contact Group window for an existing contact group in an email client such as Microsoft Outlook, go to 'Contacts', find the group, and double-click to open it. The steps may vary slightly based on the client used.
Step-by-step explanation:
To open the Contact Group window for an existing contact group, you will most likely be using an email client such as Microsoft Outlook. Here are the steps you need to follow:
- Open your email client and go to the section where your contacts are stored, which could be under 'People' or 'Contacts'.
- Locate the contact group you wish to edit. You can find this by scrolling through your contacts or using the search feature.
- Double-click on the contact group to open it. The Contact Group window should now appear, where you can view, add, or remove members as well as modify the group's settings.
Remember, the steps may vary slightly depending on the email client you are using, but the process generally follows the same basic principle. If using a web-based client, you may need to access the contact groups feature differently, often via the contacts or friends section of the email service.