What is NST File? How to Open .NST file in Outlook?

Many people are unaware of the many file formats that Outlook offers. While many people are familiar with the OST and PST file formats, there is another format called NST File. In this article I will explain what is NST File is and how to open Outlook NST files in Outlook. We will also explain where the NST file is located and suggest a way to convert it to PST using a SoftMagnat NST to PST Converter tool.

What is Outlook NST File Format?

A Office 365 NST or.NST extension file is a storage file created by MS Outlook when configuring the Office 365 account within the MS Outlook application. All MS Outlook versions, including 2016, 2013, 2010, 2007 and all below, automatically create the NST file.

Related Blog: How do I delete a corrupt OST file from Outlook?

How do I create or Open Outlook NST file?

Once the Office 365 account is configured with MS Outlook, the NST File will be created. To create an Office 365 NSF File in Outlook 2016, follow the below steps.

  1. Launch MS Outlook. Open the Outlook Add account screen. Enter the Office 365 email address, then click on Connect.
  2. MS Outlook starts adding a new account and is displaying the message ” We are Getting Things Ready”. It will take time.
  3. You will be presented with a Windows Security wizard. Enter the password for the Office 365 account that you used, and then click the OK button.
  4. Now you will see a Dialog Box about Mail Delivery Location. To create an Office 365 NST file for Outlook 2016, and lower versions, click on OK.
  5. Once you receive the Account Setup is Complete message click on the OK button.
  6. After clicking the OK button, Outlook starts accessing the O365 account’s mailbox data. Wait for the process complete.
  7. Once the retrieving process is complete, all Office 365 email ids will start appearing in Outlook. This is where you can create the .NST file for Outlook 2016, 2010, and lower versions.

Outlook NST File location

The location path for both the OST file and the NST file is the same. To locate the NST file, follow the steps below.

  1. Right-click on your Office 365 account, and click the last option, i.e. the File Properties option.
  2. Click on the Advanced Button and click OK.
  3. Now, in the Microsoft Exchange window go to the Advanced tab.
  4. Now, under the Exchange Mode Settings click on Outlook File Settings… then click OK.
  5. Copy the file path location in the file box, and then click OK to close it.
  6. Close Outlook to open Windows Explorer.
  7. Paste the copied location of the file on the URL path to Windows Explorer. Then, remove the part after Outlook. Click the Enter button to access the Outlook NSF file location.
  8. Here you can check the Office 365 .nst file in the same location i.e., Admin>AppData>Local>Microsoft>Outlook.

This will allow you to open NST files in Outlook 2013, 2010, and all subsequent versions.

Conclusion

This article will explain Outlook NST File and Office 365 .NST File. It also explains how to open NST files of Outlook in all versions. You can easily recover NST files that have been corrupted by oversize.