How Do I Open an OST File in Office 365? – Tips & Tricks

MS Exchange connected users have their offline copy of MS Outlook data kept in OST file. Often, users need to understand how do I open an OST file in Office 365 account, as they do not know the method. The procedure of uploading OST file into Office 365 Webmail is undoubtedly a difficult one, but do not worry. We will be guiding you to perform this data move by sharing a step-by-step guide. Everyone want to do now is to read this post carefully and follow the steps correctly. Now, let us go to the main part without wasting any more time.

Solution to Move OST File in Office 365 Manually

Before we go to the OST file conversion process, let us know the situation first. OST file cannot be transferred to Office 365 account. First, users need to move OST to PST and then they require to transfer that file in O365 account. Let us understand about the complete procedure now.

Stage 1. Export Offline Storage OST File to PST

1. Open Outlook and click on the File menu >> Open & Import >> Import and Export.
2. Pick Export to a file >> Personal Folder File (.pst) on the next pages.
3. Now, select the folders you wish to move and check Include Subfolder.
4. Then browse to select the location for PST file and press on the Finish to get the PST file saved.

Stage 2. Move PST File to Office 365

Now, come to the main section, which is to import the PST file into Office 365 account. There are two manual methods to add PST file in Office 365. Both the methods are approved by Microsoft but at the same time, they are complex and problematic beyond imagination. Here we well describe those methods in brief.

Method 1. Azure AzCopy

1. To start the process, download and install the Azure AzCopy on your machine. Then, copy SAS URL that will give you with the required permission to add PST file to Microsoft Azure.
2. Now is the time to transfer PST file in Office 365. Check if the transferred file gets appeared. Users also have to offer a CSV file including PST file mapping.
3. Lastly, create PST import job in O365.

Method 2. Drive Shipping

1. In the drive shipping method, users must get hold a hard drive with the BitLocker-encryption and copy PST file data in it.
2. Send that hard drive to Microsoft physically.
3. Upon receiving the hard disk, Microsoft will start moving process of PST file into the Temporary path.
4. Once it is finished, users will be provided the import service to add PST file into Exchange Online account.

Cons of Manual Method:

• The above mentioned method needs complete technical skills to achieve OST to Office 365 conversion task.
• This method is time-taking and lengthy.
• Having great chances of data loss throughout the process.

What Matters can Arise While Conducting this Method?

As users can simply understand the process to perform the methods in real life will take a huge amount of time and effort. Users nowadays do not have so much time to spend. Additionally, many do not want to go through these lengthy techniques. That is why there is an increasing demand of OST to Office 365 Conversion Tool.

Proficient Solution to Resolve the Issue How Do I Open an OST File in Office 365

OST to Office 365 software is a helpful utility that offers the purpose of OST migration to Office 365 cloud. This application is used to directly move OST file in Exchange Online. Users do not need to go through the multi-stage procedure for adding OST mailbox data into OWA account. At the same time, it can open the OST file in O365 account directly. Moreover, this software provides other features like selective conversion, folder hierarchy maintenance, etc. It is easy to use for any IT-specialist or non-IT specialist to save OST file to Outlook Web Access without any hassle on all Windows (64-bit & 32-bit) Operating Systems.

Wrapping Up

How do I open an OST file in Office 365 cloud has become such a query, which is commonly seen in many forums. Since the process is lengthy and complex, not many people are aware of it. For their suitability, this write-up described the process completely. From the discussion, users will be compatible to get clear direction and conduct the open of OST file in Outlook Web Access. If they are not interested to follow the manual approach, the option to use OST Converter is there. The application will easily fix the problem of how do I open an OST file in Office 365 account in a smooth manner.