If you use MS Outlook, you are probably aware that it restores mailboxes data in two main file format such as OST and PST File. While PST File are portable and can be easily imported into Outlook on any device, an offline OST Files come with certain restrictions. According to Microsoft Official guidelines, an outlook OST Files can’t be directly imported into Outlook or any other email... https://www.vsoftware.org/blog/can-an-ost-file-be-imported-into-outlook.html