Greetings ClaireHBM,
I hope you are doing well!
Am glad to hear that you've managed to open up the classic version of Outlook and the formatting remains. Thanks for your kind-hearted sharing, the other users who encounter the same issue will benefit from this. This information will help to more community members. Thank you again to share your valuable experience.
If you don't mind, could you kindly submit your vote on this reply. it will be pinned at the top of the thread. In this way, other users searching for the same information will easily get this information that they may try to switch back to classic outlook. Thank you so much.
Your kind cooperation and precious time will be truly appreciated. Have a nice day!
Best regards,
Inema |Community Moderator