In Outlook 2007 and older, rules are stored in the default Outlook files location, so you can use that file to backup your rules or import them to Outlook on a different computer. To open the default folder for Outlook files, go to Windows Start > Run and insert the path %USERPROFILE%\AppData\Roaming\Microsoft\Outlook.

Since Outlook 2010 the rules are stored inside your .ost file, so there will not be a separate .rwz file in this location. You will need to create the file using the instructions below.

Note: There are 2 types of rules - server-side and client-side. If you want to transfer your rules to another computer's Outlook, there's no need to export-import server-side rules as they are kept on the server and will populate automatically on the new Outlook profile. You will only need to export-import client-side rules. Read the Knowledge Base article Server-side Vs Client-side Rules for more information on the difference between the 2 types of rules.

To export the rules:

• Outlook 2007: Navigate to Tools > Rules And Alerts > Options. In the Options window, click Export Rules, and choose a file location.
• Outlook 2010/2013: On the File tab on the Ribbon, navigate to Info > Manage Rules and Alerts > Options. In the Options window, click Export Rules, and choose a file location.
• Outlook 2016/2019/365: Navigate to Home > Rules > Manage Rules & Alerts > Options or File > Manage Rules & Alerts > Options. In the Options window, click Export Rules and choose a file location.
  By default Outlook 2016 uses this location: %USERPROFILE%\AppData\Local\Microsoft\Outlook

  Note: To check your Outlook version, navigate to File > Office Account.

  

To import the rules: 

• Outlook 2007: Navigate to Tools > Rules And Alerts > Options. In the Options window, click Import Rules, and choose a file location.
• Outlook 2010/2013: On the File tab on the Ribbon, navigate to Info > Manage Rules and Alerts > Options. In the Options window, click Import Rules, and choose a file location.
• Outlook 2016/2019: Navigate to Home > Rules > Manage Rules & Alerts > Options. In the Options window, click Import Rules and choose a file location.
  By default Outlook 2016/2019 uses this location: %USERPROFILE%\AppData\Local\Microsoft\Outlook

Always check all the imported rules to make sure they are still active. Sometimes they can appear deactivated (especially in the case of rules for moving or copying to a folder) because Outlook can't be sure that the destination folder is the same as in your original rule.