Online Help for Lotus Notes to Office 365 Migration

Step-by-Step guide to migrate Lotus Notes to Office 365 using CubexSoft NSF Export Software.

Read this guide for easy understanding of steps that needs to be taken for complete Lotus notes to office 365 migration using CubexSoft NSF Export Software


Launch CubexSoft NSF Export Software from start menu or by double clicking the Shortcut icon of NSF Export from Desktop.

After launching, software will check the basic prerequisites and will display a Lotus Notes version installed in the machine as shown below , Click on OK-

Notes - Lotus Notes Installation is MANDATORY to carry out Lotus Notes tp Office 365 Migration

If you do not have Lotus Notes installed and configured, please read this complete guide and know -
How to Install and Configure Lotus Notes 9 on Windows?

first screen

The first screen of the CubexSoft NSF Export will be launched as shown below -

first screen

Click on "Select File" button on the tool-bar to add Lotus Notes Database file (NSF file)

all nsf files

Software will then display a Source File Selection box with multiple option to add the NSF File for conversion as shown below -

source nsf file selection box

Choose between Select File(s)/Select Folder option and then use the appropriate button like Browse or Add Files to load Lotus Notes NSF files for migration.

source nsf file selection box

After adding NSF Files, click on Next option to continue.


CubexSoft NSF Export will then start a advanced scan and will start loading almost every mailbox item from the selected NSF file(s) for Preview as shown below -

Advanced Scanning of NSF Files

After recursive scanning of NSF File , software will provide an advanced preview of Lotus Notes NSF Files -

Smart Preview of NSF Files

In the smart preview, you can check Email Preview & Save Attachment. If you click on the desired folder, all its file list will show quickly on the right software pane. Just select the email, which you want to view and all its data will display in the Preview section. You can use Save Attachments option to save the attached file or attachments separately in other folder


Go to Export button to start the Lotus Notes migration to Office 365 accounts after previewing the NSF file.

Export button

Now, click on the Export button, software will display a following box.

Export Box of NSF Export Software

From the Export Box, select or exclude folders for Selective Conversion of Lotus Notes Mailbox Items/Folders -

Selective NSF Export

Then after selecting the folders/items, to migrate NSF files to Office 365, you need to select Office 365 as Export type from the list as shown below -

Export Type List

After selecting the options, click on Next >> button.

Cloud based Apps

After clicking the Next button, software will display "Export to Office 365" box as shown below:

select date-range

Here you will get two option using which you can import Lotus Notes mailboxes or NSF files to Office 365 account -

  • I am Admin Option
  • I am Not Admin Option


Lets first discuss the I am an Admin option

To migrate Lotus Notes NSF files to Office 365 admin account, you need to click on I am Admin option. Enter your Office 365 admin user ID and password and click on Login button.

To fetch user mailboxes using Admin Login, make sure you are logging in with global administrator login with impersonation rights enabled. To know how to add impersonation rights - Read More

select date-range

Wait till the admin account gets validated -

Office 365 Admin Option

Once the admin account is validated, enter the user ID or smtp address of User mailboxes to map the NSF files with target mailbox for migration process.

Office 365 Admin Option

Wait till the mailbox ID gets validated. Now click on next button

Office 365 Admin Option

You can also use CSV to import and map the office 365 user mailboxes with Lotus Notes NSF files for migration -

Office 365 Admin Option

Click on Generate CSV button, software will open a new CSC file with selected NSF File path listed. You just need to type user mailbox smtp address along with NSF file path. Software will automatically import them in the software.

After login and mapping the NSF files with Office 365 accounts, click on Next button


Lets discuss the I am NOT an Admin option

To migrate Lotus Note mailboxes to individual Office 365 or accounts, you need to click on I am Not Admin option.

Office 365 Not an Admin Option

Now, enter the User ID and passwords of the Office 365 or accounts along with each selected NSF file path. This step is important for mapping the Lotus Notes mailboxes(NSF files) with target office 365 user accounts.

Office 365 Not an Admin Option

Wait till the mailbox ID gets validated. Now click on next button

Office 365 Not an Admin Option

After login and mapping the NSF files with Office 365 accounts, click on Next button


Once you click the Next button, Software will display a following box -

Lotus Notes to Office 365 conversion process

Advanced options for saving the final output varies with every saving format provided in the software. The advanced options that are available with the software are as following -

  • Apply Filters - The software offers filter options for - To, Cc, Bcc, From, Date, Subject etc.
  • Email Address Translation - allows users to convert canonical names for any senders' email address according to predefined set of SMTP formats.
  • Custom Folder Mapping - This option allows users to map custom folders of Lotus Notes NSF mailboxes such as - Inbox, Calendar, Trash, Sent Items etc. into Exchange Server mailboxes.
  • Other advanced options that includes
    • HTML Formatting - exports NSF file with proper HTML formatting of Lotus Notes email messages
    • Include All-documents folder - allows users to migrate & export Lotus Notes data from All Documents folder of Lotus Notes mailbox
    • Doclinks - allows saving of Lotus Notes emails keeping the doclinks intact.
  • Restore Mails in Default folder - This option allows users to migrate Lotus Notes Mailboxes in the default folder. The software usually creates a separate folder with CubexSoft name and with time stamp, saves the entire lotus Notes Mailbox folder hierarchy inside that folder. But once you select this option - Restore Mails in Default folder, you will be able to import the NSf File into main root folder of the mailbox.

After choosing the desired options, Click on Export button to continue


The software will then start the actual process of Lotus Notes Migration as per users selection and will display the progress status as shown below -

Conversion Progress

The software provides detailed view of progress status that includes Full path of the selected NSF, no. of items getting converted, time taken for each NSF file.

Once the whole conversion is finished, a pop-up window will appear showing the message like Conversion is Done. Then, press on the OK button to accomplish the process.

lotus notes to office 365 export


Save the complete Lotus Notes to Office 365 Migration Report - After the conversion, the software will highlight two options - OK and Save Report.

saveconversion report

By clicking on Save Report, you can save the complete conversion report of Lotus Notes NSF file in CSV format. The software will successfully create CSV file including complete migration details of NSF Files on your local system. So, you can view CSV Report in MS Excel.