Your Outlook mailbox is only so big, and it’s a good bet that you won’t stop getting email anytime soon. To keep it from filling up, you can move old items you want to keep to an archive, a separate Outlook Data File (.pst) that you can open from Outlook any time you need it.

Archiving emails is one of the best ways to keep your inbox decluttered. If you want to do this in Outlook, you’re in luck. Both Outlook for web and Outlook for desktop let you archive your emails with ease.