How to Import Archive File in Lotus Notes to Outlook.pst?

Learn how to import an archive file in Lotus Notes to Outlook without Outlook through CubexSoft NSF to PST Converter. This tool can easily export multiple NSF files into PST and other various formats with attachments.

Oct 17, 2025 - Maria Hirthe

In this blog, we will discuss the multiple solutions available to import an archive file in Lotus Notes to Outlook.pst. Further, a step-by-step process of the manual method is explained. However, the process is categorised into two stages. All these are discussed in detail in the section below:


Manual Steps to Convert Lotus Notes Archive File to Outlook


Stage 1. Exporting NSF to CSV


Implement the step-by-step process for exporting NSF files into CSV:

  1. Run IBM Notes and open the NSF file as needed in the same.
  2. Navigate to the File option and select Export.
  3. From Export Wizard, select the location path to store the file. Go to Save As type and select Comma Separated Value.
  4. Finally, press Export to start the process. It will take a couple of seconds, and once the process finishes, click the Finish button to exit.


Stage 2. Importing CSV to Outlook


Follow the steps to import the exported CSV to the Outlook app:

  1. Open MS Outlook in the system.
  2. Click File and choose option of Import and Export.
  3. Import and Export Wizard window appears, select the option of Import from another program or file. Click Next.
  4. From the Import a file Wizard, select Comma Separated Value (Windows) and hit Next.
  5. Add CSV files created earlier in Stage 1. Press Next.
  6. Select the desired location/folder where you want to import the exported file. Now, navigate to the Next tab.
  7. Finally, click Finish and verify the entire file list after conversion.


The manual method includes two stages to import a Lotus Notes archive file into Outlook. The process is implementable but quite lengthy and complex. Moreover, it is equipped with a few drawbacks that can cause data loss during the process.


Common Drawbacks of Manual Process



Use Expert’s Recommended Solution – NSF to PST Converter


NSF to PST Converter is a great tool to batch import archive files in Lotus Notes to Outlook. The application possesses an easy-to-understand and user-friendly GUI so that any technical and novice user can use the software to import a Lotus Notes archive file to Outlook. The software delivers advanced functionality with a number of features such as split PST, filters, set destination path, create separate PST for each NSF file, etc.


Download the free demo of the tool that allows you to import the first 20 NSF files per item free of cost. With the help of the freeware edition, a user can analyse and understand the software processing before purchasing the purchase of license key.


Top Best Features and Benefits of CubexSoft Lotus Notes to Outlook Converter



Final Words


Importing Lotus Notes data files to Outlook is a crucial step in migrating from one email client to another. By following the steps outlined in this article, you can ensure a smooth migration without losing any important data. Remember to back up your data before you start, and if you encounter any issues during the process, consult with your organization's IT department or an experienced IT professional for assistance. With proper planning and execution, you can seamlessly move your data from Lotus Notes to Outlook and continue your work without interruption.

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