How to open .ost file in outlook

If you use Microsoft Outlook, you may have come across the term “OST file”. But what exactly is an OST file, and how can you open it in Outlook?

An OST file, or Offline Storage Table file, is a local copy of your mailbox that is stored on your computer. It allows you to access your emails, contacts, and other data even when you are not connected to the internet.

In this article, we will discuss how to open an OST file in Outlook and the various methods you can use to do so.

What Is an OST File?

Before we dive into how to open an OST file in Outlook, let’s first understand what an OST file is and why it is important.

An OST file is a local copy of your mailbox that is stored on your computer. It is created when you use Outlook with an Exchange account and enables you to access your emails, contacts, and other data even when you are not connected to the internet.

OST files are especially useful for users who travel frequently or have limited internet access. They allow you to work offline and sync your changes with the server once you are connected to the internet again.

How to Open an OST File in Outlook

There are a few different methods you can use to open an OST file in Outlook. Let’s take a look at each of them in detail.

Method 1: Use the Import/Export Wizard

The easiest way to open an OST file in Outlook is by using the Import/Export Wizard. This method is suitable for users who have an existing OST file that they want to open in Outlook.

To use the Import/Export Wizard, follow these steps:

1. Open Outlook and go to the File tab.
2. Click on Open & Export and then select Import/Export.
3. In the Import and Export Wizard, select Import from another program or file and click Next.
4. Choose Outlook Data File (.pst) and click Next.
5. Click on Browse and select the OST file you want to open.
6. Choose the option Do not import duplicates and click Next.
7. Select the folder you want to import and click Next.
8. Click on Finish to complete the process.

Your OST file will now be imported into Outlook, and you can access your emails, contacts, and other data.

Method 2: Convert the OST File to PST

If you do not have an existing OST file, you can convert the OST file to a PST file and then open it in Outlook. This method is suitable for users who have lost access to their Exchange account or have a corrupt OST file.

To convert an OST file to a PST file, follow these steps:

1. Download and install a third-party OST to PST converter tool.
2. Open the converter tool and select the OST file you want to convert.
3. Choose the option to convert the file to a PST file.
4. Click on Convert and wait for the process to complete.
5. Once the conversion is complete, open Outlook and go to the File tab.
6. Click on Open & Export and then select Open Outlook Data File.
7. Select the PST file you just converted and click Open.
8. Your PST file will now be opened in Outlook, and you can access your data.

Method 3: Use a Third-Party Tool

If you are unable to open your OST file using the above methods, you can use a third-party tool to open it. There are many tools available online that can help you open an OST file in Outlook.

Before using a third-party tool, make sure to do your research and choose a reliable and trustworthy tool. Some popular tools include Stellar Converter for OST, SysTools OST Viewer, and Aryson OST Viewer.

Common Issues When Opening an OST File in Outlook

While opening an OST file in Outlook is a relatively simple process, you may encounter some issues along the way. Let’s take a look at some common issues and how to resolve them.

Issue 1: Cannot Open OST File in Outlook

If you are unable to open your OST file in Outlook, it could be due to a corrupt OST file. In this case, you can use a third-party tool to convert the OST file to a PST file and then open it in Outlook.

Issue 2: OST File Is Not Synchronizing

If your OST file is not synchronizing with the server, it could be due to a network issue or a problem with your Exchange account. Make sure you are connected to the internet and try restarting Outlook. If the issue persists, contact your IT department for assistance.

Issue 3: Cannot Find OST File

If you are unable to find your OST file, it could be because it is hidden. To unhide the file, follow these steps:

1. Open Control Panel and go to Folder Options.
2. Click on the View tab and select Show hidden files, folders, and drives.
3. Click Apply and then OK.

Your OST file should now be visible, and you can open it in Outlook using one of the methods mentioned above.

Conclusion

Opening an OST file in Outlook is a simple process that can be done using the Import/Export Wizard, converting the file to a PST, or using a third-party tool. If you encounter any issues, make sure to troubleshoot them or seek assistance from your IT department.

By following the methods mentioned in this article, you can easily open an OST file in Outlook and access your emails, contacts, and other data even when you are offline.