If you want to import an OST file into Office 365 cloud account then I would like to recommend you to use MacMister Mac OST Converter. It is an amazing and fast migration utility. With this program, you can quickly import an OST file into Office 365 account including emails, notes, tasks, calendars, tasks, and journals. It is capable to export multiple OST files to O365 account at once. Also, you can try the program working using the free trial edition which permits to migrate only 25 OST items per folder without cost.
Read More- https://www.macmister.com/ost/
If you want to import an OST file into Office 365 cloud account then I would like to recommend you to use MacMister Mac OST Converter. It is an amazing and fast migration utility. With this program, you can quickly import an OST file into Office 365 account including emails, notes, tasks, calendars, tasks, and journals. It is capable to export multiple OST files to O365 account at once. Also, you can try the program working using the free trial edition which permits to migrate only 25 OST items per folder without cost.
Read More- https://www.macmister.com/ost/