To add an email signature to Outlook, follow the instructions below
Pre-Requisite - Image file created by IT
Step 1 - Navigate to https://outlook.office.com/
Step 2 - At the top-right of the outlook menu bar, navigate to settings (cog)
Step 3 - In the menu bar, select ‘Compose and Reply’
Step 4 - Select the first Icon that represents inserting an image. This will open up File Explorer (windows) or finder (mac). Select the signature file
Step 5 - Once it has been selected, name the new signature and save it.
Step 6 - Scroll down below the signature and change the default settings as listed below to the signature you created and named above
Test your signature by composing/creating a new email or replying to one that you have recieved. Your signature should now be inserted.