If you are also wondering why NST file can’t be opened and imported into Outlook directly just like PST file, then you are not alone. Microsoft Outlook doesn’t provide built-in option to directly import NST file to Outlook. But in some cases, it is possible by reconfiguring original account and exporting existing profile data to another profile.

MS Outlook creates multiple different data storage formats to store different data such as PST, OST and NST. Most users only know about these formats. When Office 365 account is configured, Outlook uses the NST format to store group-related information.

But there is no direct way to import NST file to Outlook. So, this write-up will describe what an NST file is, why users want to open NST in Outlook, whether it is possible to import it manually, and alternate solution.

What is an NST File?

NST stands for Outlook Group Storage File and is used to cache data locally. It works like OST format: it is connected to Exchange mailbox and then works as independent archive. NST file is specialized offline storage file linked to certain Exchange Group Storage environments.

Why Do Users Want to Import NST File to Outlook?

Before learning the techniques to open NST file in Outlook, let’s understand why users want to do this:

  • NST file contains important group chat and wants to access it in Outlook.
  • Original Office 365 is no longer available.
  • Reinstalled Outlook and old profile is missing.
  • User wants to recover information from old NST file.
  • Need to migrate cached Outlook data to another profile.
  • Maybe user wants to preserve NST file data in a portable and accessible format.

Can You Import NST File Directly into Outlook?

No, Microsoft Outlook doesn’t provide any built-in option to import orphan NST file directly to access data. It only allows you to import data in PST format through Import/Export option. If data is still available on the server and account, then we have two different manual techniques.

For orphan or damaged NST file, first we have to convert NST file and then upload output file into Outlook account to access data. Manually, this conversion is not possible, so we will use an automated smart solution to change extension and import NST file to Outlook.

SysTools NST Converter Tool helps users change format to PST, EML, MSG, PDF, HTML and Office 365. It creates UNICODE format that can be accessible in all new Outlook versions like 2021, 2019, 2016, and 2013.

This software can change multiple NST files in bulk at once without repeating same process for each file. Also, this software doesn’t affect your original file data and maintains complete mailbox elements and attributes. You should download demo version for free to analyze features and performance.

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How to Import NST File to Outlook? Working Steps

  1. Download and install suggested solution properly, and start it.

    instal perangkat lunak

  2. Import NST file here using “Add File Options”.

    instal perangkat lunak

  3. Choose “Scan Modes” to analyze whether the NST file is corrupt or not.

    instal perangkat lunak

  4. All your data will appear successfully, select required items from here.

    required items

  5. Choose PST as your saving option from the list.

    saving option

  6. Apply more setting options from Adv Settings option.

    more setting

  7. Use Browse button to select any saving location.

    saving location

  8. And choose “Export” button to start process.

    start process

After completing the process, we will import this file into Outlook.

  1. Open Outlook.
  2. Go to “File” tab >> “Open & Export” >> “Import/Export” options.

    file tab

  3. Select “Import from Another Program or File” option and click the “Next” button.

    import

  4. Choose “Outlook Data File (.pst)” >> “Next” button.

    outlook data file

  5. Use “Browse” button to select file to import.

    select file

  6. After this, select folder to import from.

    select folder

  7. Finally, select the “Finish” button.

Top Features of NST to Outlook Import Tool

  • This software supports damaged, corrupted, and inaccessible NST files.
  • Preserve email body, header, group chats, and other elements during the process.
  • This software gives multiple preview options to analyze email header, body, attachment and other details.
  • It works with OST, NST and BAK files of Outlook.
  • Offers advanced settings for output files, such as splitting into smaller parts, date filters, and categories to export only selective data.

How to Import NST File to Outlook Manually?

If the original Exchange mailbox is active, you may recover the data by reconfiguring account and export as PST for another account. Follow the given steps:

Method 1: Reconfigure the Original Exchange Account

Outlook may synchronize mailbox again from the Exchange server, if you still have the same email account.

  1. Open “Control Panel” on Windows.
  2. Locate “Mail (Microsoft Outlook)”.
  3. Click “Show Profiles”.
  4. Now “Create a new profile”.
  5. Add the same “Exchange or Microsoft 365” account.
  6. Complete the account verification.
  7. Restart Outlook and allow synchronization to finish.

If your mailbox is still available on the server, Outlook will download emails, contacts, calendars, and other synchronized data automatically into newly created offline files.

Method 2: Export Existing Outlook Mailbox

If Outlook opens original account successfully, then there is no need to import NST file to Outlook. You can directly export PST file. This technique works when users want to import existing profile data into another Outlook profile.

  1. Open Outlook and choose “File” tab.
  2. Select “Open & Export” >> “Import/Export” option.
  3. Choose “Export to a File” option.
  4. After that, choose “Outlook Data File (.pst)”.
  5. Select mailbox to export and save the file.

These manual methods are not a direct way to import NST file to Outlook. They work when mailbox is available on server and account is working. If you have orphan and disconnected NST file, then only smart solution works.

Conclusion

Microsoft Outlook doesn’t provide built-in option to import NST file to Outlook. If mailbox data is available on the server, then you can use reconfigure accounts and export data from existing profile technique. But in case, you have orphan and disconnected NST file, then only smart solution will work. Suggested tool helps to change file extension to PST and allows you to import it into Outlook. Because Outlook only allows importing PST files through Import/Export option.