Outlook 2013: Exporting Email to a PST File
Outlook 2013 allows you to export email folders to PST files to back them up. This can be done by following the step-by-step instructions given in this guide.
Open Outlook and left-click the File tab on the far left-hand side of the ribbon at the top of the window.
In the menu on the left-hand sidebar, left-click "Open & Export."
In the "Open" menu, left-click "Import/Export."
In the Import and Export Wizard, left-click "Export to a file" in the list, then left-click "Next."
In the next window, left-click "Outlook Data File (.pst)" in the list, then left-click "Next."
In the list of folders, left-click the name of the folder you want to export from. If you want to include any subfolders to be exported as well, make sure there is a check in the "Include subfolders" check box. Left-click "Next" when you are ready.
Left-click "Browse" if you want to change the directory you are exporting to. You also have three options for duplicate items. You can either replace duplicates, allow duplicates to be created, or not export duplicate items. Left-click the option you want. When you are ready, left-click "Finish" to export the Outlook folder to the PST file.
Outlook 2013 is the latest full-featured emailing, calendar, and contact management software from the Microsoft Office suite.