Migrating data from one email client to another is becoming a common trend among individuals, professionals and organizations. Individual preferences, change in business requirements, budgetary and data management issues are some of the common reasons behind email migration. Migrating data from Lotus notes to Outlook is one such example of email migration. IBM Lotus Notes is a notably popular email application among professionals. However, MS Outlook is more preferred as far as the number of users are concerned. It’s easier to use and offers better data management & security features.

IBM Lotus Notes stores its mailbox data in NSF files. NSF files are basically the database files of Lotus Notes. In the same way, MS Outlook uses PST files to store its mailbox data. To migrate Lotus Notes to Outlook, you need to convert NSF files to PST format as MS Outlook doesn’t support the NSF file format.

How to Convert NSF Files to PST Format?

You can convert Lotus Notes NSF files to Outlook PST format either through manual method or you can use a professional NSF to PST converter. Knowing both methods is a good idea.

  1. Manual Method to Convert NSF Files to PST Format
  2. Professional NSF to PST Converter

Manual Method to Convert NSF Files to PST Format

Always take backup of original NSF file before starting the conversion process and close all running applications. First, export the required NSF file to a definite location and then import the same file to MS Outlook.

  1. Export Lotus Notes NSF File
    • Open IBM Lotus Notes >> NSF database file
    • Click on File > Export (Export Wizard window appears)
    • Select a saving location to save the file >> Select Comma Separated Value or Structured Text in Save as type
    • Type a new name for the exported NSF file and select the Export button
  2. Import the Exported NSF File in MS Outlook
    • Open MS Outlook
    • Click on File > Import (Import & Export Wizard is open)
    • Select Import from another program or file; click Next
    • Select Comma Separated values (Windows)
    • Browse the location of Exported NSF file and check Replace duplicates with item imported
    • Select a folder to import the data and click Next (Import process begins)
    • Click Finish after import process gets over

Manual NSF to PST migration is over. The exported NSF file is successfully imported in MS Outlook. Open MS Outlook to access the imported Lotus Notes data. However, manual method has its limitations and drawbacks. The technique is quite lengthy and might confuse non-technical users. It involves risk of data loss and totally incapable of migrating large amount of Lotus Notes data to MS Outlook. The method guarantees no completeness and data accuracy after migration.

Kernel for NSF to PST Converter

For complete and accurate data migration from Lotus Notes to Outlook, many IT experts do recommend the use a professional email migration software. There are so many tools available online but Kernel for NSF to PST Converter offers the best solution for Lotus Notes to Outlook migration. It performs effortless migration of entire Lotus Notes data to MS Outlook in a user-friendly manner.

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Kernel for NSF to PST Converter is the most reliable software to perform complete migration of all Lotus Notes mailbox items including emails, contacts, notes, calendar, tasks, drafts, attachments, appointments, journals, etc. to MS Outlook in minimum time. Let’s see how the software works. Install and run the software:

  1. Start with clicking on Add Local NSF file(s) to add the desired file.Add NSF File
  2. Select the desired file and click on Open.Select the desired file and Open
  3. Once you have added the files, click on Migrate.Click on migration button
  4. Or, you can have the preview of the files you want to migrate by selecting that file and click on Preview option. View the preview, select folders or files and click on Migrate.
    Preview the selected file
  5. Select the saving option which is Outlook PST and click on Ok.Select PST as a saving option
  6. Now, you need to map the location of the new file, provide a destination and proceed.
  7. In the next step, you need to apply the saving preferences like whether you want to split the file or not, date range, etc., select your preferences and click on OK.Select the saving preference
  8. Close all the instances and click on Ok.
  9. Select the quality of RTF format and click on Ok.
  10. Select the quality of RTF format

  11. When the files are saved, click on Ok.Save NSF file in Outlook

Why Kernel for NSF to PST Converter?

This advanced tool offers a preview of all NSF files before saving them at any desired location. Apart from saving the migrated Lotus Notes NSF files in Outlook PST format, the tool also offers the option to export them directly to Exchange Server. Migrated NSF files can also be saved in RTF, HTML and TXT formats.


Converting files from NSF to PST is not an easy task, but as we discussed in the blog that it is so easy if you do it with Kernel. The smartly programmed tool from KernelApps is integrated with interactive Graphical User Interface (GUI) and self-explained features which make it quite easy to operate. You can easily operate it without anyone’s assistance. The NSF to PST converter tool offers compatibility with almost all available versions of MS Outlook, MS Exchange Server, Lotus Notes, Domino Server and Windows OS.

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