How To Open Ost File In Outlook 365?

How to Open OST File in Outlook 365

If you’re using Outlook 365 and you’re looking to open an OST file, you’ve come to the right place. In this article, we’ll walk you through the steps on how to open an OST file in Outlook 365. We’ll also provide some tips on how to troubleshoot common problems that you may encounter.

So, without further ado, let’s get started!

Step	Action	Explanation
1	Open Outlook 365	Click the Microsoft Outlook icon on your desktop or taskbar.
2	Click the File tab	This will open the Backstage View.
3	Click Open & Export	This will open the Open & Export pane.
4	Click Import/Export	This will open the Import and Export Wizard.
5	Click Import from another program or file	This will open the Import a File dialog box.
6	Click Next	This will open the Select File Type dialog box.
7	Select Outlook Data File (.ost)	This will select the .ost file format.
8	Click Next	This will open the Select Outlook Data File dialog box.
9	Navigate to the location of your .ost file and click Open	This will import the .ost file into Outlook 365.

What is an OST file?

An OST file, also known as an offline storage table, is a file that stores a copy of your email messages, contacts, and calendar on your computer. This allows you to access your email even when you’re not connected to the internet.

OST files are created automatically by Outlook when you set up an account with an email service provider, such as Gmail or Yahoo Mail. The OST file is stored in a hidden folder on your computer, and you can usually find it by following these steps:

1. Open File Explorer.
2. Navigate to C:\Users\\AppData\Local\Microsoft\Outlook.
3. Double-click the **ost** file to open it in Outlook.

If you’re unable to find your OST file, you can try using a third-party tool to locate it. There are a number of different tools available, so you can do a search online to find one that best suits your needs.

How to find your OST file in Outlook 365?

To find your OST file in Outlook 365, follow these steps:

1. Open Outlook 365.
2. Click the **File** tab.
3. Click **Open & Export** > Open Outlook Data File.
4. Navigate to the folder where your OST file is located.
5. Double-click the OST file to open it in Outlook 365.

If you’re unable to find your OST file, you can try using a third-party tool to locate it. There are a number of different tools available, so you can do a search online to find one that best suits your needs.

OST files are an important part of Outlook, and they can help you to access your email even when you’re not connected to the internet. If you’re ever unable to find your OST file, you can use the steps in this article to locate it.

**3. How to open an OST file in Outlook 365?**

If you’re using Outlook 365, you may need to open an OST file at some point. OST files are offline Outlook data files that store your email messages, contacts, and calendar items when you’re working offline. When you connect to the internet, your OST file is synchronized with your Exchange server and your changes are saved.

There are a few different ways to open an OST file in Outlook 365. You can use the following methods:

* **Use the Import and Export Wizard**
* **Use the Outlook Data File (.pst) Import Wizard**
* **Use the Outlook OST File Repair Tool**

**Use the Import and Export Wizard**

The Import and Export Wizard is a built-in tool that you can use to import data from one file format to another. To use the Import and Export Wizard to open an OST file in Outlook 365, follow these steps:

1. Open Outlook 365.
2. Click the **File** tab.
3. Click **Open & Export** > **Import/Export**.
4. In the Import and Export Wizard, click **Import from another program or file**.
5. Click **Next**.
6. Select **Outlook Data File (.pst)**.
7. Click **Next**.
8. Browse to the location of the OST file you want to open.
9. Click **Open**.
10. Click **Next**.
11. Select the folder in Outlook 365 where you want to import the data from the OST file.
12. Click **Finish**.

The OST file will be imported into the selected folder in Outlook 365.

**Use the Outlook Data File (.pst) Import Wizard**

The Outlook Data File (.pst) Import Wizard is a built-in tool that you can use to import data from one PST file to another. To use the Outlook Data File (.pst) Import Wizard to open an OST file in Outlook 365, follow these steps:

1. Open Outlook 365.
2. Click the **File** tab.
3. Click **Open & Export** > Import/Export.
4. In the Import and Export Wizard, click Import from another program or file.
5. Click Next.
6. Select Outlook Data File (.pst).
7. Click Next.
8. Browse to the location of the OST file you want to open.
9. Click Open.
10. Click Next.
11. Select the folder in Outlook 365 where you want to import the data from the OST file.
12. Click Finish.

The OST file will be imported into the selected folder in Outlook 365.

Use the Outlook OST File Repair Tool

The Outlook OST File Repair Tool is a free tool that you can use to repair damaged OST files. To use the Outlook OST File Repair Tool to open an OST file in Outlook 365, follow these steps:

1. Download the Outlook OST File Repair Tool from the Microsoft website.
2. Install the Outlook OST File Repair Tool.
3. Launch the Outlook OST File Repair Tool.
4. Browse to the location of the OST file you want to repair.
5. Click Repair.

The Outlook OST File Repair Tool will repair the OST file and create a new OST file. You can then open the new OST file in Outlook 365.

Troubleshooting tips for opening OST files in Outlook 365

If you’re having trouble opening an OST file in Outlook 365, try the following troubleshooting tips:

• Make sure that you’re using the correct version of Outlook 365.
• Make sure that the OST file is compatible with Outlook 365.
• Make sure that the OST file is not corrupted.
• Try using a different method to open the OST file.
• Try repairing the OST file using the Outlook OST File Repair Tool.

If you’re still having trouble opening an OST file in Outlook 365, contact Microsoft support for help.

In this article, we’ve shown you how to open an OST file in Outlook 365. We’ve also provided troubleshooting tips for opening OST files in Outlook 365. If you have any other questions about opening OST files in Outlook 365, please contact Microsoft support.

How do I open an OST file in Outlook 365?

To open an OST file in Outlook 365, follow these steps:

1. Open Outlook 365.
2. Click the File tab.
3. Click Open & Export.
4. Click Import/Export.
5. In the Import and Export Wizard, click Import from another program or file.
6. Click Next.
7. Select Outlook Data File (.ost) and click Next.
8. Browse to the location of the OST file and click Open.
9. Select the profile you want to import the OST file into and click Next.
10. Click Finish.

The OST file will be imported into Outlook 365 and you will be able to access your emails, contacts, and calendars.

What is an OST file?

An OST file is an offline Outlook data file. It is a copy of your mailbox that is stored on your computer. This allows you to access your emails, contacts, and calendars even when you are not connected to the internet.

**Why do I need an OST file?

You need an OST file if you want to access your Outlook data when you are not connected to the internet. For example, if you are working on a laptop and you do not have access to a Wi-Fi connection, you can still access your emails, contacts, and calendars by opening the OST file.

**Can I open an OST file in Outlook 2016?

Yes, you can open an OST file in Outlook 2016. To do this, follow the steps below:

1. Open Outlook 2016.
2. Click the File tab.
3. Click Open & Export.
4. Click Import/Export.
5. In the Import and Export Wizard, click Import from another program or file.
6. Select Outlook Data File (.ost) and click Next.
7. Browse to the location of the OST file and click Open.
8. Select the profile you want to import the OST file into and click Next.
9. Click Finish.

The OST file will be imported into Outlook 2016 and you will be able to access your emails, contacts, and calendars.

**What if I get an error when I try to open an OST file?

If you get an error when you try to open an OST file, there are a few things you can check:

• Make sure that you are using the correct version of Outlook.
• Make sure that the OST file is not corrupted.
• Make sure that the OST file is located in the correct folder.
• Make sure that you have the correct permissions to open the OST file.

If you are still having trouble opening an OST file, you can contact Microsoft support for help.

**How can I prevent OST file corruption?

There are a few things you can do to prevent OST file corruption:

• Make sure that you are using the latest version of Outlook.
• Close Outlook properly when you are finished using it.
• Avoid making changes to your Outlook data while Outlook is open.
• Back up your Outlook data regularly.

By following these tips, you can help to keep your OST file safe from corruption.

In this blog post, we have discussed how to open OST file in Outlook 365. We have covered the following topics:

• What is an OST file?
• How to find your OST file in Outlook 365?
• How to open an OST file in Outlook 365?
• How to repair an OST file in Outlook 365?
• How to convert an OST file to PST?

We hope that this blog post has been helpful. If you have any further questions, please do not hesitate to contact us.