In order to migrate an OST file to an office 365 account you must first convert OST file to PST format because Office 365 does not directly support OST files. Having thus converted it into the PST format, you can then upload the data to Office 365. Here’s a step-by-step guide:
How to Import OST to Office 365:
Step 1: Conversion of OST to PST
Since OST files are associated with Outlook in Cached Exchange Mode and cannot be directly imported, you need to use one of the following methods to convert OST to PST:Since OST files are associated with Outlook in Cached Exchange Mode and cannot be directly imported, you need to use one of the following methods to convert OST to PST:
Manual Conversion via Outlook:
Open Microsoft Outlook (be certain that the OST file is attached).
Click on the File menu then select Open & Export then Import/Export.
Choose Export to a file and click on Next.
Select Outlook Data File (. pst) and press Next.
Specify the folder to export (or entire mailbox), then choose where to save the.pst file.
Using OST to PST Converter Tools:
If you are unable to open OST file in outlook (may be due to inactivate account), then third party tools such as BLR Tools OST to PST Converter can be used to convert OST into PST format.
Step 2: Import PST File into Office 365
:After converting OST to PST, you can now proceed to importing the PST file to Office 365.
Method 1: Using Outlook
Ensure that your Office 365 account is open in outlook.
Click on File located at the top menu bar, then select Open & Export and finally Open Outlook Data File.
Right click on it and find the PST file then click on Open.
To the PST file will be imported and then the emails or any other contents can be dragged and dropped to the Office 365 folders.
Method two: Importing data into Office 365 using the Import Service.
First, go to the admin center of the Microsoft 365 and sign in with the help of your administrator account.
Navigate to the Office 365 and select Security & Compliance Center, then Data Governance, Import.
Select the option that is labeled Import PST files.
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