Step 1:
Download, install, and run Office 365 to PST Converter Software.
Step 2:
Enter Login Details of Office 365 Account
Step 3:
Show Preview of all Available Folders
Step 4:
Select File Format to Save Backup Data
Step 5:
Select Destination location
Step 6:
Initiate the Saving Process
Step 7:
Successfully Backup Office 365 data into PST format.