Download & Install
Download QuickMigrations for OST to PST tool and install it in any Windows operating system.
Launch & Add OST file
Launch the software and activate Demo or Full version then click on Add file button to add OST data file into the software. There is no size limiation so you can add multiple OST file at once.
Save Destination for PST file
After loading Outlook OST data file, select all files/folders then browse the destination to save your OST data file in PST.
Once the above steps are completed, click on the Export button to initiate the migration from OST to PST.