Moving date from Outlook.com to the Outlook program in Office 365

Hi. Here's a little info on Outlook files:
Introduction to Outlook Data Files (.pst and .ost) - Outlook

Your pst/ost file needs to be located and copied, (for a backup). You then export it through the O2013 program, and import it to the new outlook 2016.

Edit: no, wait - she was using Outlook.com? hmmm.....now I have to think about that. I think you can just setup the account in O2016, and everything should sync?

Here it is:

Export or backup email, contacts, and calendar to an Outlook .pst file - Office Support


My ribbon says "Office 365" or looks different from the picture

If your ribbon doesn't looks like the Outlook desktop one, you might be using Outlook on the web, which looks like this:

Or, you might be using the Outlook Web App. The Outlook Web App ribbon looks like this:

A third possibility is you're using the Mail app for Windows 10. That ribbon looks like this:

For all three of these apps your email information is stored in the cloud. These apps don't have a feature to export all the data from your email account. The way you export the email data from your account is to use Outlook for your desktop.
If you recently purchased Outlook for your desktop, you can add your email account to Outlook on your desktop. Outlook on your desktop will sync with Outlook on the web (or Outlook Web App) and you'll see your email, contacts, and calendar on your desktop. You can then use Outlook on your desktop to import or export email, contacts, or calendar any time you want using the instructions in this article.
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When I set up my Windows Mail app all I did was enter my e-mail addresses and passwords
Everything then sync over
I can still open my mail in Outlook.com
Also in Outlook 2016
So should in fact work the same
In The Mail App all that is different is instead of opening each e-mail separately you can link them
So they all come into one inbox

RhinoCan said:

Thanks to you both for pointing me in the right direction. Unfortunately, when I went into Outlook 2016 and tried to add the account that my friend is using in Outlook.com, I got sync errors. It's not remotely clear what the causes of those errors is: it merely says "Sync errors" in the ribbon with no further clarification that I can see.

Any ideas why that would happen or how to get more information about the error? I was hoping to see at least an 8 digit hex error code like X'ABCD1234' that I could look up. Otherwise, I suppose we will have to call Microsoft and take advantage of their free tech support. Office 365 comes with a few weeks of free initial tech support.

You could try looking in the Outlook forum or Office 365 Forum and see if anyone else has had the same trouble.
Also see if you can Sync again later as sometime it needs a boot up the bottom to wake it up
Lucky I have never had that trouble but I know some members have
Have you looked in the Tutorial
Brink might have posted about it