Follow this link: https://support.office.com/en-us/article/Set-up-Office-apps-and-email-on-a-mobile-device-7dabb6cb-0046-40b6-81fe-767e0b1f014f?ui=en-US&rs=en-US&ad=US
You will need the following credentials as well.
If you're prompted to enter server settings, enter the following and tap Next.
Email: your full email address.
Server: outlook.office365.com.
Username: your full email address.
Password: email account password.