Welcome to Android Central! If you never use an email that requires Exchange Services, then go to the
Settings>Apps menu, select Exchange Services, and Disable it if you can.
In general, though, be aware that just because you see a system app as a running service, it doesn't mean it's using any significant battery or CPU. It could just be paused or cached in the background, which means it's not doing anything.
Please register on this forum, which will allow you to engage in discussion more easily, as well as post images.
https://forums.androidcentral.com/ask-question/409154-join-android-central-community.html