Class Lists
You can grab a list of your students directly from the Participants list.
From your main course page, click on the Participants link.
Click on the Select dropdown under Enrolled users and select Roles.
When you see the Type or select dropdown, click on it and select Student.
Now check the box directly to the left of First name / Last name and above the list of participants in your course.
Scroll to the bottom of the page. If you have more users than are showing, click on the Select all xxx users button. The window will refresh - scroll to the bottom again if needed.
Click on the Choose... dropdown list to the right of With selected users... and select Microsoft Excel (.xlsx) or whichever other format you prefer.
Make sure you save the file where you can find it again.