To import OLM to Office 365 manually, you usually have to employ Outlook's import/export tool or third-party software, which can sometimes be a tedious procedure. Some limitations include the fact that you cannot import OLM files directly into Office 365 without first converting them into a compatible format, which can cause possible data loss or disruption of folder hierarchy.
On the other hand, with the help of the Advik OLM Converter Tool, you can easily import your OLM files to Office 365 without any data loss. The tool is created in a way to serves both novice and expert users by simplifying the whole process of migration. You can upload a single or multiple OLM files and export them directly to your Office 365 account with all data, such as emails, contacts, calendars, and folder hierarchy, intact.