Click on "Open" button from toolbar or from File Menu
Select OST file by clicking on "Browse" button.
After selecting OST file, software scans, repair and builtup all existing OST folders and subfolders in hierarchy as show below screen-
To see the OST recovery result, click on left panel folder tree and expand it.. After that click on OST folders to check the live preview of every items.
Now click on "Convevrt button" from toolbar or from Menu bar to convert OST items-
Here you can see 7-conversion options for OST file conversion-
Select your required conversion option and also select the File Saving Location Path and convert your OST file.
Click on "Export to Office365" button from software toolbar, then below screen opens-up
Fill your Office365 login credentials and quickly import OST to Office365 with all email messages, contacts items and calendar items.
After conversion, software show you confirmation message like below-