Summarize the following:
If you’re using Windows, it’ll be in the Microsoft Office folder under All Apps in the Start menu. If you have a Mac, it’ll be in the Applications folder. It’s the two overlapping people icon near the bottom-left corner of Outlook. A list of your contacts will appear. It’s the white sheet of paper icon in the toolbar at the top of Outlook. This displays a list of contact lists. The contacts on this list will appear in a pop-up window. To do this:  Click the member you want to delete once to select them. Click Remove Member. It's in the ″Members″ group at the top of the window. If you need to change someone’s email address, name, or any other personal details, do the following:  Double-click the member's name to open their profile. Edit any fields you need to edit. Click Close & Save at the top-left corner of the window.

Summary:
Open Outlook on your computer. Click the Contacts icon. Click List. Click the list you want to edit. Remove someone from the list. Edit a member’s details.