For exporting PST file from Office 365 you can use Office 365 Backup software

Publisher:	DownloadtechTools
Downloads:	1
Software Type:	Shareware, 19.00
File Size:	24.00M
OS:	Windows All
Update Date:	31 October, 2018

Utilize advance solution i.e. Office 365 Backup application that supports for exporting PST file from Office 365 to another file formats such as EML, MSG, MBOX, EMLX and PDF without alteration of any file. It is the fantastic key for exporting PST file from Office 365 to other file formats. Users can simply avail this software because it has simple graphical interface. You can save Backup of multiple Office 365 user profiles in batch. It maintains proper data integrity during the conversion process. Office 365 Backup software also helps for exporting contacts and calendars without any issue. Try the different file naming option for exporting PST file from Office 365 to another format. For exporting PST file from Office 365 users can apply the software on all earlier and latest Windows editions.