Did you want to save the data in one email account to Exchange Online Outlook Web App?
YES
1. Set up your non-Office 365 email account in Outlook and then export the data file to .PST file.
You mean set up into the Exchange web app?
IF So how to export dara into what pst file where? I do not see ant import facilities into the web app.
2. Set up your Office 365 email account in Outlook and then import the .PST file to Office 365 account.
This is already done there is already an office 365 into outllok but how to import pst files? only I wa able to drag the foulders but this has created 2 data foulders...