How to Use Your Contacts on Another Computer

Save your address book as a file that you can transfer to other devices

Close up of an address book and pen.

Public Domain / CC BY 2.0 / Pxhere

There may be times when you want to use your address book entries on another computer or share the information with someone else. In these cases, you can export your contact list to a shareable file, then import it to another computer or send it via email or a file-sharing site.

Instructions in this article apply to and Outlook Online.

Export the Address Book to a CSV File

To use your contacts list on another computer or share it with another person, export the address book entries to a CSV file, a format that most email clients support. Then, import the file onto another computer, and use your contacts there.

The screenshots in this article use the classic interface. The new interface looks slightly different but the process works the same way.

  1. Go to and select People.

    Outlook 365 inbox webpage.
  2. Select All contacts.

    Outlook 365 Contacts list.
  3. Select Manage.

    Selecting the Manage option for contacts in Outlook 365.
  4. Select Export Contacts.

    Selecting the export contacts option in Outlook 365.
  5. Select Export.

    Choosing which contacts to export in Outlook 365.
  6. A contacts.csv file downloads, with a message at the bottom of the browser window.

    Contacts.csv downloaded from the Outlook 365 export.
  7. On your desktop, browse to the Downloads folder. Save the contacts.csv file to a folder from which you can retrieve it later, or to a flash drive if you plan to move the file physically.

    The exported file shown in File Explorer.

Use the Address Book File on a Different Computer

  1. Insert the flash drive that contains the address book file into the computer, or retrieve it from an email or file-sharing site.

  2. Open

  3. Select People > Manage > Import contacts.

    Selecting the import contacts option in Outlook 365.
  4. Select Browse.

    Import contacts dialog for
  5. Choose the contacts.csv file, then select Open.

    Choosing a file to import contact into Outlook 365.
  6. Select Import.

    Contacts.csv has been selected to be imported into Outlook 365.
  7. A confirmation message appears that says the address book was imported correctly.

    A successful import into Outlook 365.